Systems and methods for recovering blood cells, in a controlled environment, for storage

ABSTRACT

Systems, apparatus, methods, and articles of manufacture provide for resuspending and/or collecting blood and/or other types of cells in solution. In one embodiment, cells may be recovered from used surgical sponges and/or other types of surgical articles (e.g., and stored for later use).

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation-in-part application of U.S.patent application Ser. No. 14/300,316, filed Jun. 10, 2014, entitled“SYSTEMS, METHODS, AND APPARATUS FOR RESUSPENDING CELLS IN SOLUTION”;which is a continuation-in-part application of U.S. patent applicationSer. No. 14/060,663 filed Oct. 23, 2013, entitled “SYSTEMS, METHODS, ANDAPPARATUS FOR RESUSPENDING CELLS FROM SURGICAL LAUNDRY”; which claimsthe benefit of priority of U.S. Provisional Patent Application No.61/861,953 filed Aug. 2, 2013, entitled “SPONGE WASHING SYSTEM.” Each ofthe applications referenced above is incorporated by reference in thepresent application.

BRIEF DESCRIPTION OF THE DRAWINGS

An understanding of embodiments described in this disclosure and many ofthe related advantages may be readily obtained by reference to thefollowing detailed description when considered with the accompanyingdrawings, of which:

FIG. 1 is a block diagram of a cell resuspension system according to oneor more embodiments;

FIG. 2 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 3 is a cross-section view of a cell resuspension system accordingto one or more embodiments;

FIG. 4 is a top view of a cell resuspension system according to one ormore embodiments;

FIG. 5 is a top view of a cell resuspension agitator device according toone or more embodiments;

FIG. 6 is a top view of a cell resuspension agitator device according toone or more embodiments;

FIG. 7 is a perspective view of a cell resuspension system according toone or more embodiments;

FIG. 8 is a front view of a cell resuspension system according to one ormore embodiments;

FIG. 9 is a side view of a cell resuspension system according to one ormore embodiments;

FIG. 10 is a side view of a cell resuspension system according to one ormore embodiments;

FIG. 11 is a top view of an occlusion clamp assembly according to one ormore embodiments;

FIG. 12 is a perspective view of an example connector of a cellresuspension tub system, according to one or more embodiments;

FIG. 13 is a perspective view of an example connector of an agitatordevice, according to one or more embodiments;

FIG. 14 is a perspective view of an example connector of a cellresuspension tub system coupled with an example connector of an agitatordevice, according to one or more embodiments;

FIG. 15 is a perspective view of an example connector of an agitatordevice, according to one or more embodiments, for connecting to a cellresuspension tub system;

FIG. 16 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 17 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 18 is a flowchart of a method according to one or more embodiments;

FIG. 19 is a diagram of an example user interface according to one ormore embodiments;

FIG. 20 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 21 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 22 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 23 is a top view of a cell resuspension tub system according to oneor more embodiments;

FIG. 24 is a top view of a plate according to one or more embodiments;

FIG. 25 is a perspective view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 26 is a perspective view of a base unit of a cell resuspensionsystem according to one or more embodiments;

FIG. 27 is a perspective view of a cell resuspension system according toone or more embodiments;

FIG. 28 is a perspective view of an example connector of an agitatordevice, according to one or more embodiments;

FIG. 29 is a cross-section view of a cell resuspension tub systemaccording to one or more embodiments;

FIG. 30 is a perspective view of an example filter of a cellresuspension tub system according to one or more embodiments; and

FIG. 31 is a perspective view of an example filter of a cellresuspension tub system according to one or more embodiments.

DETAILED DESCRIPTION A. Introduction

Applicants have recognized that, in accordance with some embodimentsdescribed in this disclosure, some types of medical professionals andother types of users (e.g., autotransfusion specialists, nurses,perfusionists, surgeons, and other types of medical professionals) mayfind it beneficial to reclaim, recover, and/or resuspend blood and othertypes of body cells of a patient from various types of surgicalarticles. In one embodiment, resuspended blood may be stored fortesting, transfusion (e.g., into a different patient) and/or re-infusion(e.g., to the same patient), and/or may be re-infused to a patient(e.g., during a current medical procedure). According to someembodiments, systems, methods, and apparatus may be provided for thestorage of recovered blood and/or cells for testing, transfusion and/oreventual re-infusion to a patient. In some embodiments, blood cells of apatient recovered by a cell resuspension system may be concentrated(e.g., using a cell salvage device) and stored (e.g., in a sterilemanner) for later use (e.g., for transfusion to a different patient).

Applicants have further recognized that, in accordance with someembodiments described in this disclosure, rinsing and/or soakingsurgical sponges and other types of surgical laundry with physiologicsuspension solution may dilute coagulation components of whole blood,thereby making clotting of the blood in the laundry and/or in a cellsalvage or blood recovery machine (e.g., Cell Saver® 5+ Autologous BloodRecovery System by Haemonetics Corporation) less likely, yielding moresalvageable blood from the laundry. Applicants have further recognizedthat, in accordance with some embodiments described in this disclosure,by rinsing and/or soaking surgical laundry the laundry may becomesaturated with suspension fluid, further liberating blood (e.g., fromwoven cotton fibers). Applicants have further recognized that, inaccordance with some embodiments described in this disclosure, one ormore types of medications, surfactants, antibiotics, and/or other agents(e.g., anticoagulant citrate phosphate dextrose (CPD) solution, heparin,albumin) may be added directly to soaking tub or to a physiologicsolution to increase the yield of blood retrieved from surgical articlesand/or to increase the viability of recovered blood.

Applicants have further recognized that, in accordance with someembodiments described in this disclosure, in may be advantageous toprovide for a cell reclamation system, method, and apparatus providingfor and/or utilizing one or more of: normothermic blood (e.g., at 98.6 Fand/or allowing for normal oxygen unloading); automation of one or moresteps of cell reclamation; increased viability of recovered blood bydilution or anticoagulation of the blood in a suspension fluid; improveddetermination and monitoring of an indication of a volume of blood lostto sponges and other surgical laundry; determining and storing anindication of the number of cycles undertaken in a cell reclamationprocess; a cell reclamation apparatus that is closed to the environmentand/or reduces risks of splatter and/or airborne contamination; and/orautomatically sending blood-laden suspension fluid to a cell salvagemachine without disruption of any ongoing cell salvage field collection.

In accordance with one or more embodiments of the present invention,systems, methods, apparatus, and articles of manufacture are describedthat provide for one or more of the following functions: liberating,reclaiming, releasing, retrieving, extracting, filtering, recovering,resuspending, and/or collecting blood or other types of cells from usedsurgical sponges and/or other types of surgical articles (e.g., thatabsorbed, came into contact with, received, and/or were used to collector clean up blood during a surgical procedure); warming physiologicfluid to a desired temperature or temperature range (e.g., anormothermic temperature); transmitting physiologic fluid to a tub orother vessel for use in extracting (e.g., by soaking and/or agitating)cells from surgical articles (e.g., surgical sponges placed in a vesselby an operator at a surgical field); adding one or more types of agentsto a physiologic fluid (e.g., for increasing the yield and/or viabilityof recovered cells); soaking one or more surgical articles in aphysiologic solution; suspending recovered blood in a physiologicsuspension solution; and/or preparing recovered blood for re-infusion toa patient (e.g., using an autologous or other type of cell salvagedevice).

In accordance with one or more embodiments of the present invention,systems, methods, apparatus, and articles of manufacture are describedthat provide for an automated device configured to extract blood fromsurgical laundry (e.g., surgical sponges) and to re-suspend cells in acontrolled environment (e.g., a sterile field). In some embodiments,systems allow a sterile operator (e.g., a nurse) to place a steriledevice (e.g., a sterile cell resuspension tub) into a non sterile device(e.g., a cell resuspension agitator device) while maintaining thesterility of those components that are meant to remain as sterilecomponents.

In accordance with one or more embodiments of the present invention,systems, methods, apparatus, and articles of manufacture are describedthat provide for an automated device configured to extract and storeblood from surgical laundry in a controlled environment. In accordancewith one or more embodiments of the present invention, systems, methods,apparatus, and articles of manufacture are described that provide forcombined functions of (i) recovering cells from surgical sponges and(ii) counting a number of surgical sponges (e.g., sponges comprisingRFID devices).

In accordance with one or more embodiments of the present invention,systems, methods, apparatus, and articles of manufacture are describedthat provide for an automated device configured to extract blood fromsurgical sponges and to re-suspend that blood at an approximatelynormothermic temperature in a physiologic solution for processing by anautotransfusion device (e.g., a Cell Saver®). In some embodiments, adevice is configured to liberate blood from bloody surgical sponges andprepare the reclaimed blood for processing (e.g., by an autologous cellsalvage device) for re-infusion to a patient. In one embodiment, thedevice warms a physiologic fluid to a normothermic temperature (and/orreceives a warmed physiologic fluid), transmits the warmed physiologicfluid to a vessel for soaking surgical sponges used to collect blood,and, in accordance with an automated process, recovers and resuspendsthe blood form the surgical sponges into a physiologic suspensionsolution.

In accordance with one or more embodiments of the present invention,systems, methods, apparatus, and articles of manufacture are describedthat provide for a reusable agitator device and a disposable, single-usetub system, including a soaking tub and a tubing set, for use with thereusable agitator device.

In accordance with one or more embodiments of the present invention,systems, methods, apparatus, and articles of manufacture are describedthat provide for one or more of the following functions: liberating,reclaiming, releasing, retrieving, extracting, filtering, recovering,resuspending, and/or collecting biologic material from explanted,expelled, amputated, removed, or extracted biologic tissue (e.g., ahuman placenta delivered after a fetus); cooling physiologic fluid to adesired temperature or temperature range (e.g., a hypothermictemperature); transmitting physiologic fluid to a tub or other vesselfor use in extracting (e.g., by soaking and/or agitating) cells from thebiologic material; adding one or more types of agents to a physiologicfluid (e.g., for treating the biologic material, increasing the yieldand/or viability of recovered cells); receiving and soaking a filter bagcontaining biologic tissue in a physiologic solution; suspendingrecovered blood in a physiologic suspension solution; and/or preparingrecovered blood for re-infusion to a patient (e.g., using an autologousor other type of cell salvage or tissue preparation device).

B. Definitions

The terms “cell resuspension tub” and “soaking tub” may be usedsynonymously in this application to refer to a tub, drum, or other typeof vessel used for holding surgical articles (e.g., surgical laundry)and/or fluid (e.g., for resuspending cells from the surgical laundry ina fluid solution). In accordance with some embodiments, a cellresuspension tub may be spun, rotated, vibrated, shaken, and/orotherwise agitated. In some embodiments, a cell resuspension tub mayrefer to a vessel comprising, connected to, and/or coupled with one ormore components such as, without limitation, one or more fins, sensors,heaters, and/or connectors (e.g., for coupling the vessel to a motor orother agitator device).

The term “cell resuspension tub system” may be used in this applicationto refer to a cell resuspension tub and one or more other types ofcomponents with which the cell resuspension tub may be connected,coupled, manufactured, packaged, marketed, and/or sold (e.g., as asterile kit). In some embodiments, a cell suspension tub and/or one ormore other components may be sterile, disposable, and/or intended foronly one use. Components of a cell resuspension tub system may comprise,by way of example and not limitation, one or more of: tubing, fluid, apump (and/or other type of flow control device), a flow control valve(e.g., a one-way flow control valve), a filter, a permeable collectionand removal mechanism (e.g., a strainer, a filter bag), a sensor, and/ora heater, etc. In accordance with some embodiments, a sterile,single-use, disposable cell resuspension tub system comprising a soakingtub, inlet tubing for filling the soaking tub with fluid, and outlettubing for emptying the soaking tub, may be referred to as a “tub kit.”

The terms “cell resuspension agitator device” and “agitator device” maybe used synonymously in this application to refer to anyelectro-mechanical device configured to agitate a cell suspension tub(e.g., to assist in forcing and/or drawing out cells captured insurgical laundry and into a suspending solution). In some embodiments, acell resuspension agitator device may comprise a motor configured to becoupled to a soaking tub. In some embodiments, a cell resuspensionagitator device may comprise means for agitating a soaking tub and oneor other components (e.g., sensors, displays, etc.) and/or controllersfor controlling one or more functions of a cell resuspension process. Inone or more embodiments, a cell resuspension agitator device may beembodied as and/or embodied in an integrated cell resuspension appliancethat also includes software and/or hardware controllers for variousaspects of a cell resuspension process.

The terms “cell resuspension controller device” and “controller device”may be used synonymously in this application to refer to anyelectro-mechanical device configured for controlling one or morefunctions of a cell resuspension process (e.g., filling a tub and/oremptying a tub; pumping, heating, monitoring, sensing, filtering, and/ormeasuring fluid, etc.). In one example, a controller device may comprisea computing device (e.g., a personal computer, a table computer)connected to an agitator device for controlling agitation of a soakingtub and to a fluid intake/output system for controlling the filling andemptying of the soaking tub. In one or more embodiments, a cellresuspension controller device may be embodied as and/or embodied as asingle unit or appliance as an integrated cell resuspension applianceconfigured to receive one or more components (e.g., tubing) of a cellresuspension tub system and also including an agitator device foragitating a cell resuspension tub when the tub is connected to theintegrated cell resuspension appliance.

The term “cell resuspension system” may be used in this application torefer to any combination of two or more of: a cell resuspension tub, acell resuspension tub system, a fluid system (e.g., tubing, fluid,and/or a pump), a sensor, an agitator device, a radio frequencyidentification (RFID) sensor (e.g., for counting RFID-enabled surgicalsponges), a controller device, an integrated cell resuspensionappliance, a permeable collection and removal mechanism, a cellseparator, and/or a cell salvage machine. In one example, a cellresuspension system may comprise a soaking tub coupled to a motor. Inone or more embodiments, a cell resuspension system may comprise a cellresuspension tub system and an integrated cell resuspension appliance.In some embodiments, a cell resuspension system may comprise a sterile,disposable tub kit including a soaking tub and intake and/or outputfluid systems, and a reusable, integrated cell resuspension appliance(e.g., to which the soaking tub and fluid system(s) are connected forresuspending cells from surgical laundry).

The term “surgical sponge” may be used in this application to refer to atype of surgical laundry typically made of a woven cotton or other meshmaterial and designed to capture fluids (e.g., blood) that may leak froma body (e.g., during a surgical procedure). Some examples of surgicalsponges include, without limitation, laparotomy sponges, lap pads, gauzepads, swabs, X-ray detectable sponges, and RFID-enabled sponges.

The term “permeable collection and removal mechanism” may be used inthis application to refer to a type of collection device in whichsurgical laundry (e.g., surgical sponges) and/or biologic tissues may beplaced to confine its/their movement within a soaking tub (e.g., whilebeing acted upon by suspension fluid and/or agitating motion of thesoaking tub). In some embodiments, a permeable collection and removalmechanism may include one or more filter bags and/or filter cartridges(e.g., configured to hold one or more types of articles). In someembodiments, the permeable collection and removal mechanism may comprisea filter of a flexible configuration (e.g., a bag of a flexible mesh).In one example, a filter bag may comprise a bag with an opening (e.g.,for inserting into and removing materials from the filter bag) and oneor more drawstrings (e.g., of plastic, nylon, or the like) forcollapsing or expanding, as needed, the inner area of the bag around thesponges or biologic materials.

In some embodiments, a filter bag comprises a permeable material oforganic, inorganic, and/or hybrid organic/inorganic materials (e.g., ofpolypropylene, nylon, felt, cotton, and/or plastic) including holes orpores of a size suitable for allowing suspension solution to pass in andout of the filter bag, while retaining any unsuspended and/or relativelylarger solid materials inside the bag. In some embodiments, the filterbag may comprise a bag of a woven or knitted fabric, single-strand ormulti-strand mesh, and/or polypropylene microfibers (e.g., Vorex HPfilter cartridges by Filter Specialists, Inc.).

C. General Systems and Structures

FIG. 1 depicts a block diagram of an example architecture for a cellresuspension system 100 for facilitating the resuspension of cells fromsurgical laundry and other articles, according to one or moreembodiments. The cell resuspension system 100 may include a memoryinterface 102, one or more data processors, image processors, and/orcentral processing units 104, and a controller interface 106. The memoryinterface 102, the one or more processors 104, and/or the controllerinterface 106 may be separate components or may be integrated in one ormore integrated circuits. The various components in the cellresuspension system 100 may be coupled by one or more communicationbuses or signal lines.

Sensors, devices, and subsystems may be coupled to the controllerinterface 106 to facilitate multiple functionalities. For example, aflow/air detector 109, a temperature sensor 110, a heater 112, a pump114, a fill sensor 116, a hematocrit sensor 118, RFID subsystem(s) 124(e.g., including one or more RFID sensors), and a motor 120 may becoupled to the controller interface 106 to facilitate heating, filling,monitoring, suspending, and/or draining functions described in thisdisclosure with respect to various embodiments.

In some embodiments, as discussed in this disclosure, the motor 120 maybe configured (e.g., via a drive shaft and/or connector) to agitate acell resuspension tub containing fluid and surgical laundry and/or othersurgical articles (not shown), and the motor 122 (which may be embodiedas an agitator device) may receive controlling signals via thecontroller interface 106. As discussed in this disclosure, one or moretemperature sensors 110, heaters 112, and/or hematocrit sensors 118 may,in accordance with some embodiments, be embodied in one or more of acell resuspension tub, agitator device, and/or tubing system (not shown)of a cell resuspension system 100. In one example, based on a readingreceived from a temperature sensor 110, the processor(s) 104 may directa heater 112 to turn on or off, or to otherwise provide or ceaseproviding heat (e.g., to fluid in a tubing system). As also discussed inthis disclosure, one or more pumps 114 may, in accordance with someembodiments, be embodied in one or more of a cell resuspension tubsystem and/or tubing system of a cell resuspension system 100 (e.g., forcontrolling the transmission of fluid into and/or out of a cellresuspension tub). In one example, based on a signal from a fill sensor116 indicating that a cell resuspension tub has reached a predeterminedlevel, the processor(s) 104 may direct a pump 114 to stop pumping fluidand/or may direct a motor 120 to turn on and/or engage a drive shaft torotate or otherwise agitate the cell resuspension tub.

According to some embodiments, communication functions of a cellresuspension system may be facilitated through one or more wired and/orwireless communication subsystem(s) 122. According to some embodiments,cell resuspension information and/or patient information may be receivedfrom and/or transmitted to the processor(s) 104 via communicationsubsystem(s) 122. Communications may, in one or more embodiments, beassociated with a “network” or a “communication network”. As used inthis disclosure, the terms “network” and “communication network” may beused interchangeably and may refer to any object, entity, component,device, and/or any combination thereof that permits, facilitates, and/orotherwise contributes to or is associated with the transmission ofmessages, packets, signals, and/or other forms of information betweenand/or within one or more network devices. In some embodiments, networksmay be hard-wired, wireless, virtual, neural, and/or any otherconfiguration or type of network that is or becomes known. Networks maycomprise any number of computers and/or other types of devices incommunication with one another, directly or indirectly, via a wired orwireless medium such as the Internet, LAN, WAN or Ethernet (or IEEE802.3), Token Ring, RF, cable TV, satellite links, or via anyappropriate communications means or combination of communications means.In some embodiments, a network may include one or more wired and/orwireless networks operated in accordance with any communication standardor protocol that is or becomes known or practicable. Exemplary protocolsfor network communications include but are not limited to: the FastEthernet LAN transmission standard 802.3-2002® published by theInstitute of Electrical and Electronics Engineers (IEEE), Bluetooth™,Time Division Multiple Access (TDMA), Code Division Multiple Access(CDMA), Global System for Mobile communications (GSM), Enhanced Datarates for GSM Evolution (EDGE), General Packet Radio Service (GPRS),Wideband CDMA (WCDMA), Advanced Mobile Phone System (AMPS), Digital AMPS(D-AMPS), IEEE 802.11 (WI-FI), IEEE 802.3, SAP, the best of breed (BOB),system to system (S2S), or the like. Communication between and/or amongdevices may be encrypted to ensure privacy and/or prevent fraud in anyone or more of a variety of ways well known in the art. The specificdesign and embodiment of the communication subsystem(s) 122 may dependon the communication network(s) over which the cell resuspension system100 is intended to operate for a desired implementation.

According to some embodiments, one or more functions of a cellresuspension system may be facilitated through one or more radiofrequency identification (RFID) subsystem(s) 124. In one example, sometypes of surgical laundry may include RFID chips or other type of memorythat is readable by an RFID reader device or sensor. In someembodiments, one or more of a cell resuspension agitator device and/or acell resuspension tub, may, in addition to acting (e.g., hydraulically)upon surgical laundry, be configured to track a count of surgicalsponges via an RFID sensor. Accordingly, RFID subsystem(s) 124comprising one or more RFID reader devices may be useful for detectingsurgical sponges with RFID chips. In accordance with some embodiments,detected sponges may be counted and/or identified as they are insertedinto and/or removed from a cell resuspension tub. In some embodiments,information about RFID-enabled sponges (e.g., count information,identifying information) may be transmitted to the processor(s) 104 viaRFID subsystem(s) 122 (e.g., for use in displaying information via auser interface) and/or transmitted to a separate RFID tracking system.

Devices that are in communication with each other need not be incontinuous communication with each other, unless expressly specifiedotherwise. On the contrary, such devices need only transmit to eachother as necessary or desirable, and may actually refrain fromexchanging data most of the time. For example, a machine incommunication with another machine via the Internet may not transmitdata to the other machine for weeks at a time. In addition, devices thatare in communication with each other may communicate directly orindirectly through one or more intermediaries.

The I/O subsystem 140 may include operator panel controller 142 and/orother input controller(s) 144. The operator panel controller 142 may becoupled, for example, to an operator panel 146 (e.g., a touch screen, abutton panel). The operator panel 146 and operator panel controller 142may, for example, detect the actuation by a user of one or more hardwarebuttons and/or switches. A touch screen may, for example, also be usedto implement virtual or soft buttons and/or a keyboard. For example, theoperator panel 146 and operator panel controller 142 may, in a touchscreen embodiment, detect contact and movement or break thereof usingany of a plurality of touch sensitivity technologies, including but notlimited to capacitive, resistive, infrared, and surface acoustic wavetechnologies, as well as other proximity sensor arrays or other elementsfor determining one or more points of contact with the operator panel146. The user may be able, in some embodiments, to customize afunctionality of one or more buttons or other input means of theoperator panel 146.

The other input controller(s) 144 may be coupled to other input/controldevices 148, such as one or more buttons, rocker switches, thumb-wheel,infrared port, USB port, and/or a pointer device such as a mouse orstylus.

The memory interface 102 may be coupled to memory 150. The memory 150may include high-speed random access memory and/or non-volatile memory,such as one or more magnetic disk storage devices, one or more opticalstorage devices, and/or flash memory (e.g., NAND, NOR). The memory 150may store an operating system (not shown), such as ANDROID, DARWIN,RTXC, LINUX, UNIX, OS X, WINDOWS. The memory 150 may also storecommunication instructions 154 to facilitate communicating with one ormore additional devices, one or more computers and/or one or moreservers.

The memory 150 may include sensor processing instructions 172 tofacilitate sensor-related processing and functions and/or cellresuspension software instructions 174 to facilitate any one or more ofvarious other processes and functions for resuspending cells, adescribed in this disclosure.

Each of the above identified instructions and applications maycorrespond to a set of instructions for performing one or more functionsdescribed above. These instructions need not be implemented as separatesoftware programs, procedures, or modules. The memory 150 may includeadditional instructions or fewer instructions. Furthermore, variousfunctions of the cell resuspension system 100 may be implemented inhardware and/or in software, including in one or more signal processingand/or application specific integrated circuits.

As depicted in FIG. 1, cell resuspension system 100 may comprise a cellresuspension tub system 160, as discussed with respect to variousembodiments in this disclosure. Cell resuspension tub system 160 maycomprise one or more fluid systems 162 (e.g., an inlet tubing system, anoutput tubing system) and one or more cell resuspension tubs 164.Various examples of fluid systems and cell resuspension tubs arediscussed in this disclosure. As indicated in FIG. 1, in accordance withsome embodiments, cell resuspension tub 164 may be configured forconnecting with motor 120 and/or may be mechanically coupled to motor120. As depicted in FIG. 1, in some embodiments, one or more componentsof cell resuspension tub system 160 (e.g., inlet tubing, cellresuspension tub 164) may be connected to, may comprise, and/or may beconfigured to be received by one or more of the components incommunication with the controller interface 106. In one example, cellresuspension tub 164 may comprise one or more fill sensors 116configured to communicate with the processor(s) 104 via controllerinterface 106 (e.g., for indicating when the cell resuspension tub 164has been filled with fluid to a predetermined level). In anotherexample, a portion of inlet tubing of a fluid system 164 may be loadedthrough a heater 112.

FIG. 2 depicts a cross-section view of an example cell resuspension tubsystem 200 according to one or more embodiments. According to someembodiments, cell resuspension tub system 200 may comprise one or moreof the following components: a tub, a fin, a sensor (e.g., a fillsensor, a hematocrit sensor), a tub wall opening, a filter, a valve(e.g., a duck bill valve or other type of one-way valve and/or a two-wayvalve), a connector, a heat exchange element, tubing, a compressiblesegment, a tubing guide, a tubing connection, a clamp (and/or other typeof flow control device), an intravenous (IV) bag spike, and/or an IVbag. If a particular type of component is utilized, it will beunderstood that the cell resuspension tub system 200 may comprise one ormore of that particular component (e.g., more than one fin).

According to some embodiments, soaking tub 202 comprises a vessel orcontainer with an opening at one end for receiving (e.g., from a user)one or more articles (e.g., surgical sponges and/or other types ofsurgical laundry) that include cells (e.g., blood cells), biologictissues (e.g., a bodily organ, placental tissue), and/or fluids (e.g.,blood). In one example, a user may place surgical sponges that includeblood and/or other bodily fluids collected during a surgical or othermedical procedure (e.g., sponges that have been used to soak up orotherwise retain surgical blood) into the soaking tub 202. According tosome embodiments, soaking tub 202 is configured to be mounted in, on, orotherwise connected mechanically to an agitator device and/or a cellresuspension controller device. According to some embodiments, soakingtub 202 comprises a sterile tub or drum for only a single use.

According to some embodiments, soaking tub 202 comprises an open-endedcontainer or drum of metal or other rigid material. In one example,soaking tub 202 comprises a “U”-shaped vessel.

According to some embodiments, the soaking tub 202 may have an innerdiameter in the range of 15-21 inches (e.g., 18 inches) and/or a heightin the range of 12-18 inches (e.g., 15 inches). In one exampleembodiment, soaking tub 202 may have a volume capacity suitable forfilling with approximately 2684 ml of physiologic fluid (e.g., inaddition to one or more articles for soaking). It will readilyunderstood that any particular dimensions of the soaking tub may be usedas deemed desirable for a particular implementation (e.g., forparticular types and/or sizes of surgical articles).

In one or more embodiments, one or more inner and/or outer surfaces ofthe soaking tub 202 may comprise an anti-thrombotic surface, bio-passivesurface, and/or a bio-compatible surface configured to interact withblood for the purposes of reducing the inflammatory process oreliminating the possibility of thrombus formation, cell salvagesyndrome, and/or platelet adhesion. In some embodiments, a surface maybe prepared by applying or coating the surface with an anti-thromboticsubstance (e.g., X Coating™ by Terumo, Inc., Carmeda® BioActive Surfaceby Medtronic, Inc.).

In one or more embodiments, soaking tub 202 may comprise a single wall.In some embodiments, soaking tub 202 comprises dual walls, such as aninner tub wall and an outer tub wall. In one embodiment, an innermost(medial) wall of the soaking tub 202 is circumferentially perforatedwith one or more openings 212. Accordingly, the inner tub wall may, insome embodiments, allow fluid and/or recovered cells to pass through thefenestrated wall via the openings 212, while retaining any surgicallaundry or other articles within the inner tub wall (e.g., when the tubis drained via the outlet tubing).

According to one example, openings 212 comprise, by way of example andwithout limitation, round holes ½ of an inch in diameter andapproximately ½ of an inch apart from one another. It will readily beunderstood that any number of holes and/or any one or more diameters maybe used as deemed desirable for a particular implementation (e.g., forparticular types and/or sizes of surgical articles). In one embodiment,openings 212 extend from the bottom of the soaking tub 202 up to within3 inches from the top the soaking tub. For example, there may be noopenings in the top one to two inches of soaking tub 202.

According to some embodiments, one or more blades or fins 210 may beconnected to one or more of the interior bottom and/or inner wall of thesoaking tub 202. When the soaking tub 202 is rotated (e.g., by a motor),the fins 210 may assist in agitating any fluid in the soaking tub 202,thereby acting on the fluid and/or surgical laundry in the tub (and/orin a filter bag in the tub) to assist in liberating any cells collectedin the surgical laundry. In one example, three uniform individualplastic “fins” project inward from the innermost (medial) wall of thesoaking tub 202, to provide turbulent motion to the suspension fluid(e.g., when the soaking tub 202 is alternately rotated clockwise andcounterclockwise). In another example, each fin 210 measures 10-15inches (e.g., 13 inches) from the bottom of the soaking tub 202 towardsthe top and extending in toward the middle of the tub 2¾ inches. In oneembodiment, the shape of a fin may be configured to facilitate removalof surgical laundry by hand. In one example, the fins may be tapered,rounded, or otherwise shaped and/or sized in order to accommodate theintroduction of a user's hand into the interior of the soaking tub 202(e.g., without edges or protrusions that may cut or pierce a user's skinand/or gloves).

According to some embodiments, one or more of the fins 210 may comprisefenestrations, gaps, passages, or other types of openings in thestructure of the fin allowing at least some fluid in the soaking tub 202to pass through the fin (e.g., as the fin is agitating the fluid).Applicant has recognized that allowing for fluid to pass through a finmay beneficially eliminate splashing of the fluid and/or may preservesome of the rotational energy of the suspension fluid as it is rotating,which may more improve the efficiency of reclaiming cells from surgicallaundry. In an embodiment without such fenestrations, the potentialmotion of the fluid is more limited (e.g., to movement between or aroundtwo adjacent fins).

In one or more embodiments, the soaking tub 202 may comprise at leastone fill sensor 208 for detecting at least one of: presence of apredetermined level of fluid in the soaking tub 202 and/or a volume offluid in the soaking tub 202. In one embodiment, fill sensor 208comprises a sensor for detecting when a level of fluid reaches apredetermined height in the soaking tub 208. In one example, fill sensor208 is inside the outermost wall of the soaking tub 202. Overfilling ofthe soaking tub may cause contamination (e.g., of the cell resuspensiontub system, cell resuspension agitator device, and/or cell resuspensioncontroller device) and/or loss of any bloody suspension fluid thatspills out.

In one embodiment, fill sensor 208 may be configured so that when itcomes into contact with fluid or otherwise detects the presence of fluidat a predetermined level of the soaking tub 208 (e.g., a maximum fillheight), it sends a signal indicating it has detected fluid. In one ormore embodiments the fill sensor 208 may comprise a sensor configured todetect a ground fault caused when some medium (e.g., fluid reaching acertain level in the soaking tub) creates an electrical connectionbetween two points or nodes of the sensor.

For example, if soaking tub 202 is filled to the height of fill sensor208, the sensor detects the presence of fluid and transmits a signal toa controller device. In one example, the controller device may terminatea fill process in response to receiving a signal from the fill sensor208 (e.g., by stopping a roller pump or other type of pump device frompumping additional fluid into soaking tub 202). According to oneembodiment, the fill sensor 208 is configured to prevent the overfillingof fluid by triggering the deactivating (e.g., by a controller device)of an inlet side occlusive roller pump from engaging.

In one embodiment, the fill sensor 208 comprises a sensor fordetermining a volume status of the soaking tub 202 in accordance with avolume equation:V=h×3.14×r ²,in which h and r represent the height and inner radius, respectively, ofthe soaking tub 202.

In one or more embodiments, soaking tub 202 and/or y-type tubingconnection 222 may comprise one or more filters 214 of one or morevarious types, used individually and/or together. In one example, one ormore depth filters (e.g., sponge) and/or one or more screen filters maybe used alone or in combination (e.g., for filtering sponges, surgicallaundry, fat emboli, adipose tissue, and the like). Filter 214, inaccordance with some embodiments, may be configured to prevent debris,fat emboli, adipose tissue, clots, articles from which cells are beingreclaimed, and/or other unwanted matter and materials, from exiting thesoaking tub 202 and/or entering y-type tubing connection 222, inlettubing 204, and/or outlet tubing 206. According to one or moreembodiments, filter 214 is configured to allow resuspended cells (e.g.,red blood cells) to pass out of the soaking tub 202, while retainingunwanted materials in the soaking tub 202. According to someembodiments, outlet tubing 206 may comprise and/or be connected to oneor more leur ports and/or adapters, blood collection systems, bloodcollection tubes (e.g., Vacutainer® tubes by Becton Dickson andCompany), blood collection needles, and/or IV quick prime lines (with orwithout spikes) to facilitate the collection of recovered cells fortesting, transfusion, and/or for storage.

In one example, red blood cells, suspended or otherwise carried alongwith physiologic fluid used to extract the red blood cells from bloodysurgical articles, may pass through the filter at the bottom of soakingtub 202, into y-type tubing connection 222, and into outlet tubing 206,while the surgical articles remain in the soaking tub 202. According tosome embodiments, filter 214 similarly may prevent (e.g., during a tubfilling process) unwanted matter from entering soaking tub 214 via theinlet tubing 204 and/or y-type tubing connection 222.

In some embodiments, cell resuspension tub system 200 may comprise aconnector for removably fixing, mounting, or otherwise connecting thesoaking tub 202 to a drive source (e.g., a motor) for rotating thesoaking tub 202. In one or more embodiments, a connector is attached tothe underside of a soaking tub and is configured to be removablyinserted or otherwise connected to a corresponding rotatable connector(e.g., a connecting end of a motor's drive shaft). When the connectorsare connected and rotating, the soaking tub 202 is caused to rotate.

In some embodiments, a male connector 220 is attached to the undersideof soaking tub 202 and is configured to be removably inserted orotherwise connected to a corresponding rotatable female connector (e.g.,of an agitator device) for rotating the soaking tub 202. In one example,the male connector 220 comprises a multifaceted block of metal or otherrigid material affixed to the soaking tub in a manner such that when themale connector 220 is rotated, it rotates the soaking tub 220. Accordingto the example, the male connector is of a multifaceted shape designedto fit into a corresponding female connector for receiving and rotatingthe male connector 220.

Some examples of connector designs for removably securing and rotatingthe soaking tub 202 are discussed in this disclosure; various other waysof shaping and designing respective connectors to be rotatably connectedto one another will be readily understood by those skilled in the art inlight of the present disclosure.

According to some embodiments, male connector 220 comprises or may becoupled with y-type tubing connection 222. In one embodiment, maleconnector 220 may comprise: (i) one or more holes or channels allowingfluid to pass in and/or out of soaking tub 202 via y-type tubingconnection 222, (ii) one or more holes or channels allowing fluid topass into soaking tub 202 via inlet tubing 204, and/or (iii) one or moreholes or channels allowing fluid to pass out of soaking tub 202 viaoutlet tubing 206.

According to some embodiments, inlet tubing 204 and/or outlet tubing 206may comprise one or more coils. In some embodiments, coils of tubing 204and/or 206 may be placed inside a controller device (e.g., an integratedcell resuspension appliance) with the soaking tub 202 and/or othercomponents of a cell resuspension tub system 200.

Inlet tubing 204 and/or outlet tubing 206 may comprise polyvinylchloride (PVC) tubing. In one or more embodiments, one or more innerand/or outer surfaces of the soaking tub 202 may comprise ananti-thrombotic surface, bio-passive surface, and/or a bio-compatiblesurface. In one embodiment, the inlet tubing 204 is 40 inches in lengthwith a 3/16-inch inner diameter. In some embodiments, tubing maycomprise one or more rigid plastic sleeves or other type of “tubing bendrelief” for preventing kinking of the tubing. In various embodiments,tubing may comprise at least one sterile cap on an end of the tubing(e.g., to maintain sterility of the interior of the tubing prior touse).

In one embodiment, inlet tubing 204 may comprise at least one heatexchange segment 226 comprising a material suitable for conductivetransfer of heat. For example, the heat exchange segment 226 maycomprise stainless steel and/or other types of conductive metal.According to one example, the heat exchange segment 226 comprisesstainless steel tubing (e.g., up to approximately 6 inches in length).In another example, the heat exchange segment 226 is not made of PVC orplastic. It will be readily understood that any length and/or materialfor a heat exchange element may be used as deemed desirable for aparticular implementation.

In one or more embodiments, the location of the heat exchange segment226 along inlet tubing 204 is configured to allow the heat exchangesegment 226 to be inserted into or otherwise be in contact with aheating element and/or other heat exchange surface (e.g., integrated ina cell resuspension controller device and/or controlled by a cellresuspension controller device).

In one embodiment, inlet tubing 204, outlet tubing 206, and/or soakingtub 202 may comprise one or more heating elements for heating fluid(s).

According to some embodiments, inlet tubing 204 may comprise at leastone compressible segment 230 comprising a material suited for mechanicalcompression and/or manipulation of the tubing segment. In oneembodiment, compressible segment 230 comprises a compressible silasticmaterial.

In one or more embodiments, compressible segment 230 may be manipulatedby a roller pump or other pump device in order to force fluid throughthe inlet tubing 2104 (e.g., into soaking tub 202 and/or out throughoutlet tubing 2106).

In one embodiment, compressible segment 230 may be configured, by thematerial used and/or by its placement along inlet tubing 2104, to beloaded into a roller pump and/or raceway (e.g., of an agitator device orcontroller device).

According to one example, compressible segment 230 comprises a segmentof compressible silastic material approximately 9 inches in length, thatmay be loaded through a dual head roller pump and raceway integrated inan agitator device.

According to some embodiments, inlet tubing 204 and/or outlet tubing2106 may comprise one or more tubing guides or plugs, such as tubingguides 228 and 231, configured to ensure that the tubing is installedcorrectly. For example, in accordance with one or more of variousembodiments discussed in this disclosure, tubing may be held in placeby, connected to, and/or affixed to an agitator device, controllerdevice, pump device, and/or other type of device or apparatus. Mosttubing is uniform in nature, allowing for the possibility that it may beinadvertently loaded incorrectly (and/or unsafely) in the wrongdirection. Applicants have recognized that it may be advantageous, inaccordance with some embodiments described in this disclosure, toprovide for one or more specifically shaped guides that only line upwith their respective and correspondingly shaped indents, sockets, orreceptacles, to prevent loading the tubing in the wrong direction and/oran inappropriate pathway (e.g., a round protuberance will only line upwith an inlet side of a tubing raceway and a square protuberance willonly line up with an outlet side of the raceway).

In one or more embodiments, a tubing guide comprises a protuberanceattached to the tubing. In one example, a tubing guide may comprise acube, rectangular prism, cylinder, sphere, or other shaped guide, and atleast a portion of the tubing passes through and/or is affixed to theguide. In some embodiments, tubing guides 228 and 231 may comprisespecific shapes only to be inserted into their shape specificcounterparts for a desired tubing path and/or direction (e.g., as tubingpathway guides and/or raceway direction guides).

According to some embodiments, the shape of a tubing guide is configuredto be removably inserted into a correspondingly shaped socket,receptacle or depression. When the tubing guide is inserted in theappropriately-shaped socket (e.g., a cylindrical or spherical guide intoa round hole), the guide holds the tubing in place (e.g., in a rollerpump assembly).

According to some embodiments, one or more tubing guides may be used toeliminate the possibility of inadvertently connecting or loading tubingin the wrong direction.

In one example, the proximal side of the compressible segment 230 ofinlet tubing 2104 may pass through or otherwise be attached to a roundprotuberance (e.g., ½ inch diameter), and the distal side of thecompressible segment 230 may pass through or otherwise be attached to asquare protuberance (e.g., ½ inch square). The round protuberance is forinsertion into a first corresponding socket to ensure, for example, thatthe inlet tubing is oriented properly to bring fluid (e.g., from an IVbag attached to that end of the inlet tubing) into a roller pumpassembly.

It will be readily understood that although two insert guides aredepicted in FIG. 2, a tubing guide comprising an asymmetrical design, incombination with a corresponding receptacle design, may be sufficientfor ensuring that tubing is oriented correctly (e.g., that inlet oroutlet tubing is not loaded in the wrong direction), if inserting theasymmetrical guide ensures that the tubing can only be oriented in onedirection. Any number and/or design of insert guides may be appropriate,as deemed desirable for a particular implementation.

In one or more embodiments, the inlet tubing 204 and outlet tubing 206may be joined by a y-type tubing connection 222, such as a ThermoScientific™ Nalgene® y-type polypropylene tubing connector or wyeconnector by Teleflex. In one embodiment, at least one end of y-typetubing connection 222 passes through male connector 220, allowing forfluid to flow in and/or out of soaking tub 202. Y-type tubing connection222 may be useful, in accordance with some embodiments, to facilitate(1) filling the soaking tub with physiologic solution (not shown) and/or(2) emptying the soaking tub of the bloody suspension fluid (not shown).

According to some embodiments, inlet tubing 204 comprises one or moreintravenous (IV) bag spikes 236 for supplying one or more types of fluid(e.g., physiologic fluid) to a cell resuspension tub system via inlettubing 204. Applicant has recognized that, in accordance with one ormore embodiments, soaking surgical laundry with physiologic suspensionsolution causes the dilution of the coagulation components of wholeblood, making clotting of the blood in the surgical laundry and/or acell salvage machine less likely and yielding more salvageable bloodfrom the collection process. According to some embodiments, a cellresuspension or reclamation process may comprise a step of soakingbloody surgical sponges in a suspension fluid to allow the surgicallaundry to become saturated with suspension fluid, further liberatingblood from the woven cotton fibers of the sponges. According to one ormore embodiments, a clinician may add other medicines, solutions,agents, and/or infusible products (e.g., in addition to physiologicsolution) to the soaking tub (e.g., at a pre-determined ratio). It maybe advantageous, in accordance with some embodiments, to use one or moreadditional products to enhance the yield of the bloody suspension fluidfrom surgical laundry and/or to add one or more agents to the suspensionfluid to make re-infusion of that fluid better for the patient and/or toincrease the viability of recovered cells. Diluting the blood with aphysiologic solution or other agent may inhibit the enzymatic reactionsthat are necessary for coagulation to occur. In one example, the use ofblood collection agents added or mixed with the physiologic solutionsuch as citrate-phosphate-dextrose (CPD-A1 or A2) may aide in theviability, anticoagulation, nourishment, and suspension of any spongeblood reclaimed during a soak/rinse process.

In one or more embodiments, inlet tubing 204 may comprise one or moreclamps 234 (e.g., Roberts clamps) for starting, stopping, adjusting, orotherwise controlling the release of fluids (e.g., physiologic solution)into the inlet tubing 204 (e.g., from one or more IV bags).

According to some embodiments, inlet tubing 204 may comprise a y-typespike connection 232, allowing two or more IV bags (not shown) to beattached to the inlet tubing (e.g., via IV bag spikes 236).

As depicted in FIG. 2, inlet tubing 204, clamps 234, and y-type spikeconnection 232 may allow for multiple products to be introducedindividually into a single tubing line and/or to be combined (e.g., in apredetermined ratio) into a common tubing line that may be run throughone or more types of pumps, heaters, and/or sensors. In accordance withsome embodiments, one or more additional tubing lines may be utilized.In one or more embodiments, multiple tubing lines may be run through oneor more of any pumps, heaters, sensors, and/or other components. In someembodiment, inlet tubing 204 may be configured to include a first tubingline having its own respective one or more IV spikes and/or spikeconnections for introducing products into the first tubing line, and mayfurther include a second tubing line having its own respective one ormore IV spikes and/or spike connections for introducing products intothe second tubing line. In some embodiments, the separate first andsecond tubing lines may be run through the same one or more componentsand/or the first tubing line may be run through one or more componentsthat the second tubing line is not run through. In some embodiments, thefirst and second tubing lines may join together (e.g., via a tubingconnection) after at least one of the tubing lines has been run throughone or more components.

According to one hypothetical example, a first tubing line forintroducing physiologic fluid and a separate, second tubing line forintroducing a drug (e.g., heparin) both may be run through the sameroller pump assembly (e.g., roller pump assembly 909) and then connecttogether into a common tubing line after passing through the roller pumpassembly. The amount of fluid and/or amount of the drug being introducedmay be individually controlled (and/or a desired ratio achieved) basedon, for example, the respective diameter of the corresponding tubingline (e.g., 3/16-¼ inch for the physiologic solution tubing, ⅛ inch forthe drug tubing). In another example, a first and second tubing line mayconnect together after the first tubing line has passed through a rollerpump assembly and after the second tubing line has passed separatelythrough the same or a different roller pump assembly and also through aheater. In another example, a first and a second tubing line may connecttogether after both have passed separately through two or morecomponents. In another example, a first and a second tubing line mayconnect together after the first tubing line has passed through at leastone component and before the second tubing line passes through anycomponent. In one embodiment, one or more separate tubing lines do notconnect (e.g., each is pumped and empties separately into a soakingtub). Various configurations of one or more tubing lines, components,and/or connections, suitable for desirable implementations, will bereadily understood those skilled in the art in light of this disclosure.

As discussed in this disclosure, outlet tubing 206 may be loaded throughone or more of: an occlusive clamp, a flow sensor, and/or an airdetector (e.g., mounted on an agitator device or controller device). Inone embodiment, the outlet tubing 206 has a 3/16-inch inner diameter.

In one or more embodiments, outlet tubing 206 may comprise a portion 270for loading through a flow sensor and/or air detector (e.g., a combinedflow/air detector). According to some embodiments, outlet tubing 206 maycomprise at least one type of sensor for measuring an amount of cells(e.g., red blood cells) in a fluid. In one embodiment, outlet tubing 206may comprise a hematocrit sensor 224 (e.g., an In-Line hematocrit sensorby In-Line Diagnostics Corporation) for measuring a volume of recoveredred blood cells suspended in a physiologic solution (e.g., red bloodcells extracted from surgical sponges in soaking tub 202).

According to some embodiments, soaking tub 202 and/or one or more othercomponents of cell resuspension tub system 200 may comprise one or moresterile components. For example, soaking tub 202, inlet tubing 204,and/or outlet tubing 206 may be sterilized and/or packaged in a sterilemanner appropriate for medical use (e.g., for introduction to and use ona sterile field; during a surgical or other medical procedure).

According to some embodiments, soaking tub 202 and/or one or more othercomponents of cell resuspension tub system 200 are for a single use. Forexample, cell resuspension tub system 200 may be used during only asingle surgical procedure, for only a single patient, for extractingcells from only a single set of one or more surgical articles, and/orfor only one cell resuspension process.

FIG. 3 depicts a cross-section view of an example cell resuspensionsystem 300 according to one or more embodiments. As shown in FIG. 3, theexample cell resuspension system 300 comprises a soaking tub 202mechanically coupled with a cell resuspension agitator device 302. Inparticular, in accordance with some embodiments, a connector 220 of thesoaking tub 202 comprises a portion 304 for removably mounting orotherwise coupling the soaking tub 202 to the connector 306 of the cellresuspension agitator device 302.

In one example, as shown in FIG. 3, the connector 306 comprises a femaleconnector (e.g., comprising or attached to a drive mechanism forrotating soaking tub 202) configured for receiving portion 304, which isconfigured to fit into the connector 306.

According to some embodiments, connector 306 comprises, is coupled to,or is integrated into a motor assembly comprising a motor for rotatingthe soaking tub 202.

As shown in FIG. 3, the example cell resuspension system 300 maycomprise fluid input means 308 (e.g., inlet tubing 204) for introducingfluid into the soaking tub 202 and/or fluid output means 310 (e.g.,outlet tubing 206) for removing fluid (e.g., fluid including suspendedcells) from the soaking tub 202. In one embodiment, outlet tubing 206may be connected to a cell salvage machine and/or a cardiopulmonarymachine, such as an S5™ heart-lung machine by Sorin Group.

According to some embodiments, a controller device, agitator device,and/or cell resuspension tub system may comprise one or more temperaturethermistors for measuring a temperature of fluid in one or more of afluid intake system, fluid output system, and/or soaking tub.

FIG. 4 depicts a top view of an example cell resuspension system 400comprising a soaking tub 202 rotatably mounted in a cell resuspensionagitator device 302, in accordance with one or more embodiments. Asshown in FIG. 4, the cell resuspension agitator device 302 may beconfigured (e.g., using a rotating drive shaft coupled to the soakingtub 202) to rotate soaking tub 202 clockwise and/or counterclockwise. Insome embodiments, cell resuspension system 400 is configured to rotatesoaking tub 202 clockwise and counterclockwise through a limited rangeof rotation (e.g., 270 degrees, 90 degrees, 2.5 rotations, 1080degrees). According to some embodiments a length of slack tubing (e.g.,configured as one or more tubing coils) in fluid input means 308 and/orfluid output means 310 may be configured to accommodate a desired rangeof rotation of the soaking tub 202.

As depicted in FIG. 4, soaking tub 202 may comprise one or more fins 210for agitating the fluid 404 when the soaking tub 202 is rotated.According to some embodiments, the back and forth rotation causes thefins 210 to agitate the fluid 404 and/or the articles 402. In oneexample, the rotation of the soaking tub 202 by the cell resuspensionagitator device 302 provides friction, turbulence, and/or mechanicalaction to the fluid 404 and/or articles 402 to remove cells (e.g., redblood cells) from the articles 402. According to one embodiment, anycells freed from the articles 402 may be suspended in the fluid 404(e.g., for removal with the fluid 404 through outlet tubing 310).

FIG. 5 depicts a top view of an example cell resuspension agitatordevice 500 according to one or more embodiments. The cell resuspensionagitator device 500 may, in some embodiments, be configured forcombination with a cell resuspension tub and/or cell resuspension tubsystem (indicated by dashed lines in FIG. 5). As shown in FIG. 5, cellresuspension agitator device 500 may comprise walled cabinet 504 (e.g.,constructed of a rigid material such as, without limitation, aluminum,plastic, or stainless steel) or frame. In some embodiments, embodimentcell resuspension agitator device 500 may comprise a lid and/or a bottomportion or panel (not shown). In one embodiment, cell resuspensionagitator device 500 may comprise a drain for draining the agitatordevice should it be contaminated with spillage (e.g., from a cellresuspension tub).

As depicted in FIG. 5, cell resuspension agitator device 500 maycomprise an agitating drive assembly 506 for providing rotating or othertype of agitating motion to a cell resuspension tub (e.g., to producefriction and/or turbulent motion for freeing cells from surgicalarticles). In some embodiments, agitating drive assembly 506 maycomprise or be coupled to a power source (not shown), such as a motorand/or drive shaft, for rotating a cell resuspension tub. In oneembodiment, cell resuspension agitator device 500 comprises an agitatingdrive assembly 506 but does not comprise a cabinet, frame, or walls.

In accordance with some embodiments, as discussed in this disclosure,agitating drive assembly 506 may be or may comprise a male, female, orother type of connector for coupling with a corresponding connector of acell resuspension tub. For example, agitating drive assembly 506 maycomprise a female connector (e.g., connector 306 (FIG. 3)) for rotatablycoupling with male connector 220 of cell resuspension tub 202, as shownin FIG. 2. Although shown as having a multifaceted, hexagonal shape, itwill be readily understood that agitating drive assembly 506 may beconfigured in any shape suitable for securely and rotatably connectingwith a correspondingly shaped connector of a cell resuspension tub.

In some embodiments, agitating drive assembly 506 may comprise a groove,passageway, or other type of channel 502 for allowing the tubing orother means for conducting fluid (e.g., inlet tubing 204 (FIG. 2)) topass through one or more sides of the agitating drive assembly 506 whena soaking tub receiving such tubing (e.g., via a y-type tubingconnection) is mounted in agitating drive assembly 506.

FIG. 6 depicts a top view of an example cell resuspension agitatordevice 600 according to one or more embodiments. Similar to the cellresuspension agitator device described with respect to FIG. 5, the cellresuspension agitator device 600 may, in some embodiments, be configuredfor combination with a cell resuspension tub and/or cell resuspensiontub system (indicated by dashed lines in FIG. 6). Cell resuspensionagitator device 600 may comprise an agitating drive assembly 606 forproviding rotating or other type of agitating motion to a cellresuspension tub. In some embodiments, agitating drive assembly 506 maycomprise or be coupled to a power source (not shown).

As shown in FIG. 6, in accordance with some embodiments, agitating driveassembly 506 comprise a male, female, or other type of connectorcomprising one or more fins, blades, or other rotation securing element608 protruding from an interior side of the agitating drive assembly forcoupling with a corresponding connector of a cell resuspension tub. Forexample, the rotation securing element(s) 608 may fit into correspondingreceptacles, slots, sockets, or the like, in the cell resuspension tubwhen the tub is properly mounted. Accordingly, the rotation securingelement 608 may help to secure the cell resuspension tub to agitatingdrive assembly 506 and/or provide rotational motion to the cellresuspension tub when the agitating drive assembly 606 is rotating.Although shown as having a generally circular shape, it will be readilyunderstood that agitating drive assembly 606 may be configured in anyshape, and/or with any number and/or shape of rotation securing elements608, suitable for securely and rotatably connecting with acorrespondingly shaped connector of a cell resuspension tub.

In some embodiments, agitating drive assembly 606 may comprise one ormore channels 602, for allowing the tubing or other means for conductingfluid to pass into a mounted soaking tub. Accordingly to someembodiments, as shown in FIG. 6, cell resuspension agitator device 600may also comprise a cabinet 604.+

According to some embodiments, an agitating drive assembly may beconfigured to couple magnetically and/or electromagnetically (e.g., witha corresponding cell resuspension tub connector) in order to provide fora secure connection. In one embodiment, a magnetized female connectormay be utilized to hold securely a corresponding male connector of asoaking tub, without necessarily requiring the male connector be of amultifaceted design or requiring connecting fins, blades, or the like,in order for the female connector to rotate the soaking tub.

FIG. 7 depicts a perspective view of an example cell resuspension system700 according to one or more embodiments. Cell resuspension system 700may comprise, in accordance with some embodiments: a lid 704, a cellresuspension tub 705, a user control panel 710, a cell resuspensioncontroller device 711, fluid intake system 712, and fluid output system714.

The lid 704, for example, may comprise a lid hinged to the top of a sideof the cell resuspension controller device 711 (e.g., hinged to the topof the back panel). In some embodiments, the lid 704 may be constructedof plastic and/or glass. The lid 704 may be clear, in accordance withone or more embodiments, to allow a user to see into the interior of thecell resuspension controller device 711 and/or cell resuspension tub705. As shown in FIG. 7, the lid 704 may comprise one or more notches orgrooves to allow passage of tubing or other means for providing fluid inand/or out of the cell resuspension controller device 711 and/or cellresuspension tub 705.

In one embodiment, the underside of lid 704 may comprise a cover or lidconfigured to cover the top opening of cell resuspension tub 705 toprevent spilling or splashing fluid from the tub (e.g., during afilling, draining, and/or agitating process). In one example, a cover ofa shape and size suitable for sealing or closing the opening at the topof the cell resuspension tub 705 may be affixed to or integrated withthe underside of lid 704. According to various embodiments, theunderside of a cover for sealing the tub opening against fluid spillagemay be concave, convex, or flat. In one embodiment, a cover having anunderside with a convex surface extending into the tub (e.g., coming toa downward point or a spherical surface bowing into the tub) mayadvantageously allow any spilled or splashed fluid accumulating on theunderside of the cover to drain, in accordance with the gravitationalpull, toward the center of the cover. Alternatively, a tub system maycomprise a covering for a tub that is not attached to lid 704 (or isremovably attachable to lid 704).

As shown in a close-up detail in FIG. 7, in some embodiments a sleeve706 may be used with the lid 704. For example, a sterile, single-use,plastic sleeve having an opening on at least one end, may be placed by auser around the lid 704 prior to initiating a cell resuspension process.In some embodiments, one or more protective coverings or sheets, ratherthan a single sleeve, may be used to cover the top and/or underside ofthe lid 704. In one embodiment, the sleeve 706 is transparent or clearenough to allow a user to view the interior of the cell resuspensioncontroller device 711 and/or the cell resuspension tub 705 through thelid 704.

As shown in FIG. 7, the user control panel 710 may comprise, in someembodiments, one or more displays, touchscreens, buttons, switches,keypads, or the like, and/or any combination of desirable input and/oroutput devices deemed desirable for initiating, monitoring, modifying,controlling, and/or receiving information about a cell resuspensionprocess. Various types of functions that may be provided by a cellresuspension controller device are described in this disclosure, and oneor more of such functions may be provided via the user control panel710.

As shown in a close-up detail in FIG. 7, in some embodiments a usercontrol panel covering 708 (e.g., a sheet of plastic) may be used toprotect and/or keep sterile the user control panel 710. In oneembodiment, as depicted in FIG. 7, the user control panel covering 708may be removably affixed (e.g., using an appropriate adhesive) at leastat portion 709 (e.g., an adhesive strip along the top of the usercontrol panel covering 708) to the user control panel 710. According tosome embodiments, the user control panel covering 708 may be for asingle use and may be replaced by a user for each use of the cellresuspension controller device 711.

The cell resuspension controller device 711 may comprise, as shown inFIG. 7, an outer cabinet with lid 704 and user control panel 710. Insome embodiments, the cell resuspension controller device 711 maycomprise one or more of: a processor, a computer readable memory (e.g.,storing computer readable instructions for directing the processor toperform a cell resuspension process), one or more input devices, one ormore output devices, a power supply, a connecting drive assembly (e.g.,for coupling with and rotating the cell resuspension tub 705), a motor,and/or a communication port. Cell resuspension controller device 711 maycomprise and/or be in communication with, according to some embodiments,a cell resuspension agitator device 500 for coupling with and rotating asoaking tub (e.g., soaking tub 202 of cell resuspension tub system 200).

According to some embodiments, the cell resuspension controller devicemay be configured (e.g., in accordance with one or more hardware and/orsoftware controllers) to provide for one or more of the followingfunctions:

-   -   a. monitoring and/or controlling input of physiologic fluid to a        soaking tub and/or cell resuspension tub system    -   b. monitoring and/or controlling one or more roller pump or        other types of pump devices for controlling the filling and/or        emptying of a soaking tub and/or cell resuspension tub system    -   c. monitoring and/or controlling one or more clamping valves        (and/or other types of flow control devices) to facilitate the        filling of a soaking tub with a physiologic solution    -   d. monitoring and/or controlling one or more clamping valves to        facilitate the emptying of a soaking tub of physiologic solution        (e.g., bloody physiologic suspension solution)    -   e. monitoring and/or controlling a temperature of a fluid (e.g.,        a physiologic solution)    -   f. monitoring and/or controlling one or more heat exchange        surfaces (e.g., for controlling temperature)    -   g. controlling the motion of a multifaceted receiver to provide        for turbulence and/or rotational motion in a soaking tub (e.g.,        rotating a fluid filled tub back and forth through a 180-240        degree range to create turbulence in the fluid)    -   h. spinning and/or rotating a soaking tub    -   i. controlling the operation of a lid and/or latch (e.g.,        allowing/securing access to an interior of an agitator device        for installing and/or removing a soaking tub and/or cell        resuspension tub system)    -   j. tracking, monitoring, storing (e.g., for documentation to a        patient's medical record), and/or transmitting information        related to one or more of:        -   volume of blood loss (e.g., as collected from sponges)        -   volume of physiologic solution fluid in (e.g., to a soaking            tub)        -   volume of (bloody) suspension fluid out (e.g., from a            soaking tub)        -   a hematocrit measure of the suspension fluid

The cell resuspension tub 705, as discussed with respect to variousembodiments in this disclosure, may comprise a soaking tub, connectorfor connecting the soaking tub to a cell resuspension agitator device, afilter, tubing, and/or one or more tubing connectors. For example, cellresuspension tub 705 may comprise soaking tub 202, male connector 220,filter 214, and y-type tubing connection 222. In some embodiments, cellresuspension tub 705 may be manufactured and/or sold as part of a cellresuspension tub system. For example, cell resuspension tub 705 may beprovided as a sterile, single-use soaking tub with fluid intake system712 (e.g., inlet tubing 204) and/or fluid output system 714 (e.g.,outlet tubing 206), as part of a single-use cell resuspension tubsystem, for use with cell resuspension controller device 711.

According to some embodiments, fluid intake system 712 may comprise oneor more of the following: physiologic fluid, tubing, a tubing connector,a clamp, an IV bag spike, an IV bag, a compressible tubing segment, apump, a heat exchange element, and/or a heating element. According toone example, the fluid intake system 712 of FIG. 7 may comprise one ormore of the following example components discussed with respect to theexample cell resuspension tub system 200 of FIG. 2: inlet tubing 204,heat exchange element 226, tubing guides 228 and 231, compressiblesegment 230, IV bag spikes 236, clamps 234, and/or y-type spikeconnection 232.

According to some embodiments, fluid output system 714 may comprise oneor more of the following: physiologic fluid, tubing, a tubing connector,a clamp, a compressible tubing segment, a pump, a heat exchange element,a heating element, a hematocrit sensor, and/or a cell salvage machine.According to one example, the fluid output system 714 of FIG. 7 maycomprise one or more of the following example components discussed withrespect to the example cell resuspension tub system 200 of FIG. 2:outlet tubing 206 and/or heat exchange element 226.

FIG. 8 depicts a front view of the example cell resuspension system 700according to one or more embodiments. As shown in FIG. 8, the examplecell resuspension system 700 may comprise: cell resuspension controllerdevice 711, including lid 704 and user control panel 710. As depicted,lid 704 may be closed, while the configuration of lid 704 (e.g., usingnotches or other passageways for tubing) may still allow fluid intakesystem 712 to provide fluid into the interior of cell resuspensioncontroller device 711 (e.g., into a mounted soaking tub (not shown)) andmay still allow fluid to exit via fluid output system 714. It will bereadily understood by one skilled in the art, in light of thisdisclosure, that the placement of various components described in FIG. 8may vary from what is depicted (e.g., the user control panel may be onan upper side of the cell resuspension controller device 711 and/orintegrated into lid 704).

FIG. 9 depicts an example side view of the example cell resuspensionsystem 700 according to one or more embodiments. In particular, FIG. 9depicts example components of an example fluid intake system forproviding fluid to the cell resuspension system (e.g., into a soakingtub (not shown)) for use in resuspending cells that were collected insurgical articles (e.g., bloody surgical sponges). According to someembodiments, fluid intake components may comprise one or more of thefollowing: IV bags 902, IV bag hooks 903 (e.g., for holding IV bags902), IV bag spikes 936 (e.g., for receiving fluid from IV bags 902),clamps 934 (e.g., for controlling flow of fluid from IV bags 902),y-type spike connection 932, tubing 904 (e.g., PVC tubing), roller pumpassembly 909 and roller pump 908, tubing guides 906 and/or 910 (e.g.,for ensuring that the tubing is loaded in the correct direction into theroller pump assembly 909), compressible segment 930, heat exchangesegment 926, and/or heating element 912.

Various types of pumps, including roller pumps and/or various positivedisplacement pumps, suitable for conducting fluid through tubing areknown to those skilled in the art. As depicted in FIG. 9, according tosome embodiments, at least a portion of tubing 904 may be loaded into aroller pump assembly 909 for pumping fluid (e.g., from IV bag 902) into,for example, a soaking tub (not shown) of the cell resuspension system700. In one example, a compressible segment 930 of tubing may be loadedinto a channel or “raceway” (e.g., a metallic raceway) of the rollerpump assembly 909 and around the roller pump 908. In one example, theroller pump 908 comprises an occlusive, dual headed roller pump havingtwo heads in opposition to one another. When the roller pump assembly909 is activated (e.g., via the user control panel 710), the roller pump908 rotates, acting on the compressible segment 930 and forcing fluidaway from a fluid source (e.g., IV bag 902). Alternatively or inaddition, one or more other pumps (e.g., roller pumps) may be used toadvance fluid into and/or out of a cell resuspension tub or tub system.According to some embodiments, a controller device and/or sensor maydetermine an amount of fluid added to a cell resuspension tub and/orsystem (e.g., from IV bags) based on a determination of an amount offluid passing through the raceway. In one example, the amount of fluidpassing through the raceway (e.g., per stroke of the raceway) may bedetermined based on an inner diameter of the tubing.

In one embodiment, the roller pump assembly 909 may be provided with orattached to tubing 904, and may be configured to plug into a socket orother receptacle by which it may be powered and/or controlled by cellresuspension controller device 711. In another embodiment, the rollerpump assembly 909 may have a power source and/or controller not providedby cell resuspension controller device 711. For example, the tubing 904may be coupled to a stand-alone pump device (e.g., with its own controlsand/or user control interface).

As shown in FIG. 9, an example fluid intake system of the example cellresuspension system 700 may also comprise one or more tubing guides 906and/or 910. Each of the tubing guides 906 and 910 may fit into arespective, correspondingly shaped socket (e.g., of the roller pumpassembly 909) such that a user is required to load the tubing 904 in thecorrect direction through the roller pump assembly 909.

Applicant has recognized that the temperature and viability of any bloodmay decrease significantly over time once it is outside the body and/orif allowed to equilibrate with the environmental temperature (e.g. of anoperating room). As the temperature of red blood cells decreases, sodoes the ability of the red blood cells to transfer oxygen. Accordingly,in some embodiments, a cell resuspension system may provide for heatingand/or maintaining a desired temperature of resuspended cells, which mayimprove the viability of red blood cells and their ability to transferoxygen, thereby improving the quality of the recovered blood forpurposes of autotransfusion, if desired.

The example cell resuspension system 700, according to some embodiments,may comprise one or more heating elements 912 and/or one or more heatexchange elements 926, to heat fluid in a fluid intake system, soakingtub, and/or fluid output system. In one example, heating element 912 maycomprise a heater such as an electric conductive heat exchanger. In oneembodiment, as depicted in FIG. 9, heat exchange element 926 may be aportion of tubing 904 configured to fit into a corresponding channel in(or otherwise be coupled with) heating element 912. In one embodiment,the heating element 912 may be provided with or attached to tubing 904,and may be configured to plug into a socket or other receptacle by whichit may be powered and/or controlled by cell resuspension controllerdevice 711. In another embodiment, the heating element 912 may have apower source and/or controller not provided by cell resuspensioncontroller device 711. For example, the tubing 904 may be coupled to astand-alone heating element (e.g., with its own user interface forsetting desired temperature). Although depicted in FIG. 9 as part of afluid intake path, alternatively or in addition, one or more heatingelements may be used in accordance with some embodiments to heat fluidin a cell resuspension tub and/or traveling through a fluid outputsystem. In one embodiment, a heating element may be embodied in a cellresuspension tub. For example, a heating element (e.g., electric wires)may be placed between the inner and the outer walls of a soaking tub forwarming the suspension fluid. In one embodiment, such wiring may travel(e.g., along with wiring for the fill sensor or other electricalcomponents) and exit the tub (e.g., at the bottom connector).

The example cell resuspension system 700, according to some embodiments,may further comprise the user control panel 710 and/or power connection914 (e.g., a power cord) for providing electrical power to one or morecomponents of the cell resuspension system 700. According to oneembodiment, the cell resuspension system 700 may comprise an electricalpower source (e.g., a battery, a generator).

As discussed with respect to one or more embodiments in this disclosure,a cell resuspension system may provide for collecting cells (e.g., redblood cells) from surgical articles (e.g., surgical sponges) using fluidand a rotating soaking tub. After a desired period of time and/or aftera desired amount of cells have been recovered, the fluid, now includingthe suspended cells, may be removed from the soaking tub via a fluidoutput system. In some embodiments, a pump (e.g., a roller pump) may beused to draw or force the fluid out of the soaking tub. In someembodiments, a fluid output system may conduct the collected cells, inthe fluid, to a cell salvage machine and/or may comprise a cell salvagemachine or other device for removing cells borne by the fluid.

Although FIG. 9 depicts an example fluid intake system configured tointroduce one or more products (e.g., fluids, agents) through variouscomponents using a single, common line of tubing, it will be readilyunderstood (as discussed with respect to FIG. 2) that two or moreseparate tubing lines (e.g., each with a respective one or more IV bagspikes) may be utilized and/or may connect to one another in variousways, as deemed desirable for a particular implementation.

FIG. 10 depicts another example side view of the example cellresuspension system 700 according to one or more embodiments. As shownin FIG. 10, the cell resuspension system 700 may comprise the cellresuspension controller device 711 (including the lid 704 and usercontrol panel 710) and a fluid output system 714. According to someembodiments, the fluid output system 714 may comprise one or more of:tubing 1012 (e.g. PVC tubing), a flow/air detector 1002, and/or ahematocrit sensor 1004. As indicated by the directional arrow, fluidpasses out of the cell resuspension controller device via tubing 1012.In one embodiment, the fluid may pass through a flow/air detector 1002,such as a flow/air detector by Transonic Corporation, providing for botha volume measurement of fluid over a period of time as well as for thepresence/detection of air.

In some embodiments, the fluid may pass through a hematocrit sensor 1004for measuring an amount of red blood cells or other cells suspended inthe fluid. In one embodiment, the tubing 1012 may comprise a hematocritsensor component 1024 for coupling with the hematocrit sensor 1004. Forexample, a section of tubing 1012 may contain a sensor “window” forinstalling into a hematocrit sensor (e.g., integrated in an agitatordevice cabinet), allowing the hematocrit sensor to transmit light energyinto the tubing for use in analyzing the fluid. In some embodiments,based on the amount of light that is reflected the hematocrit sensor1004 and/or a controller device may calculate a value and a saturationof hemoglobin in the fluid.

In one embodiment, the hematocrit sensor 1002 and/or flow/air detector1002 may be in communication with a processor of the cell resuspensioncontroller device 711, such as for transmitting measurements taken ofthe fluid to the processor (e.g., for display via user control panel 710and/or other user interface). Some embodiments may comprise storingand/or transmitting an indication of information determined using one ormore sensors described in this disclosure (e.g., a controller device maytransmit the information to a data storage device via a communicationsnetwork).

As shown in FIG. 10, the cell resuspension system 700, according to someembodiments, may also comprise at least one bar code scanner 1010 (e.g.,a USB barcode scanner by Unitech), network interface 1006 (e.g., forreceiving and/or transmitting patient case information, fluidinformation, and/or cell information), and/or equipotential bindingposts 1008 to facilitate ensuring the electrical safety of a controllerdevice and/or agitator device (e.g., when in use around flammableanesthetics and gases like oxygen). In some embodiments, networkinterface 1006 may comprise a wireless communications adapter and/or awired network port for communicating with one or more computers via acommunications network (e.g., the Internet, a hospital's intranet).

As shown in FIG. 9 and in FIG. 10, various fluid intake and/or fluidoutput components may be mounted onto and/or removably attached to, orintegrated with, an apparatus or device (e.g., the cell resuspensioncontroller device 711). For example, IV bags may be hung on the side ofa controller device, tubing removably loaded into a roller pump that isintegrated with a controller device, a heat exchange element of inlettubing may be removably secured in a heating element integrated with acontroller device, and/or a portion of outlet tubing may be coupled witha flow/air detector and/or a hematocrit sensor affixed to a controllerdevice. It will be readily understood, however, that any one or more ofthe fluid system components described in this disclosure does not haveto be physically attached to a side or other portion of the cellresuspension controller device. For example, one or more of the pump, IVbags, tubing (e.g., other the portion of tubing that enters the cellresuspension controller device and/or soaking tub), sensors, and/orheating element may be free standing, configured with or as a separateapparatus or device, or otherwise not affixed to a side of a cellresuspension controller device or cell resuspension agitator device.

FIG. 11 depicts a top view of an example occlusion clamp assembly 1100according to one or more embodiments. Occlusion clamp assembly 1100 maybe useful, in accordance with some embodiments, for clamping fluidtubing (e.g., of fluid intake system 712 and/or fluid output system714). In one or more embodiments, the occlusion clamp assembly 1100comprises occlusion motor 1102 for driving and withdrawing occlusionstem 1104. Occlusion motor 1102 is configured to (i) drive occlusionstem 1104 (e.g., upon receiving a signal from a controller device) intotubing 1105 and into stem receiver 1106 to clamp tubing 1105 and stopthe flow of fluid (and/or other materials) through the tubing 1105; and(ii) withdraw occlusion stem 104 from tubing 1105 to allow for the flowof fluid through the tubing 1105. In some embodiments, occlusion clampassembly 1100 may comprise a striker plate assembly 1108 against whichthe drive occlusion stem 1104 compresses the tubing 1105.

As depicted in FIG. 11, the example occlusion clamp assembly 1100 may bemounted, for example, on a side, panel, or frame 1110 of a cellresuspension system (e.g., an exterior cabinet panel of a cellresuspension agitator device or cell resuspension controller device), toallow for controlling the flow of fluid passing via tubing into and/orout of the device.

FIG. 12 and FIG. 13 depict perspective views of an example connector1202 and an example connector 1300, respectively, of a cell resuspensionsystem, according to one or more embodiments. In some embodiments, theconnector 1202 may be connected to and/or integrated with a cellresuspension tub (not shown) of a cell resuspension tub system and maybe configured for coupling the cell resuspension tub to a cellresuspension agitator device (not shown) via connector 1300. As depictedin FIG. 12, connector 1202 may comprise a male connector configured of ashape appropriate for inserting into a correspondingly shaped femaleconnector of an agitator device (or vice versa). As shown in FIG. 12,the connector 1202 may comprise a tubing passageway 1206. In oneembodiment, the tubing passageway 1206 may allow for tubing to passthrough the connector 1202 and into a soaking tub (e.g., soaking tub202). As shown in FIG. 12, the connector 1202 also may comprise a tubingpassageway or channel 1204. Similarly, the connector 1300 may comprise atubing passageway or channel 1302. In one or more embodiments, asdepicted in FIG. 14, the tubing channel 1204 and tubing channel 1302 mayallow for tubing 1208 (e.g., y-type tubing connection 222) to pass intothe connector 1202 (from one or both sides) and/or through the tubingpassageway 1206 while the connector 1202 is coupled with correspondingconnector 1300 of FIG. 13. Accordingly, fluid may be allowed to passinto and/or out of a soaking tub while the tub is coupled via connector1202 to connector 1300 of a drive shaft assembly (e.g., of a motor orother type of agitator device) for rotating the soaking tub.

FIG. 15 is a perspective view of an alternative example connector 1500of an agitator device, according to one or more embodiments, forconnecting to a cell resuspension tub system. Similar to the exampleconnector 1300 (FIG. 13), example connector 1500 may comprise a tubingchannel 1502 for receiving and holding tubing securely when theconnector 1500 is coupled with a soaking tub. Although the exampleconnector 1500 is circular in shape, it will be readily understood inlight of this disclosure that connectors may be configured in any ofvarious shapes and/or sizes suitable for a desired implementation.

FIG. 16 depicts a cross-section view of an example cell resuspension tubsystem 1600 according to one or more embodiments. Cell resuspension tubsystem 1600 comprises a soaking tub 1602 and a rotating connector 1608for connecting the soaking tub 202 to a means for rotating the soakingtub 1602 (e.g., a drive shaft assembly connected to a motor). Theexample cell resuspension tub system 1600 comprises a clamp 1609 forpreventing leaks (e.g., a tie band cable clamp) and a y-type tubingconnection 1610 for connecting the soaking tub 1602, inlet tubing 1612,and outlet tubing 1614. In contrast to some other embodiments discussedin this disclosure, the y-type tubing connection 1610 is not secured tothe rotating connector 1608, allowing the soaking tub 1602 and they-type tubing connection 1610 to move independently of one another. Forexample, if the rotating connector 1608 is rotatably secured to arotating motor (e.g., not shown), the y-type tubing connection 1610 mayremain relatively still or unaffected even while the soaking tub 1602 isrotating or spinning.

FIG. 17 depicts a cross-section view of an example cell resuspension tubsystem 1700 according to one or more embodiments. Cell resuspension tubsystem 1700 comprises a soaking tub 1702 for reclaiming cells fromarticles 1712 in fluid 1710. In contrast to some other embodimentsdiscussed in this disclosure, cell resuspension tub system 1700 includesa fluid intake system 1706 for providing fluid 1710 (e.g., via PVCtubing from IV bag 1704) to soaking tub 1702 via the opening at the topof soaking tub 1702. In one example, fluid intake system 1706 maycomprise tubing and/or a fluid dispensing element 1708 for releasingfluid into the soaking tub 1702. As shown in FIG. 17, the fluiddispensing element 1708 may comprise one or more holes through whichfluid 1710 may enter from the tubing into the soaking tub 202. Also incontrast to some other embodiments discussed in this disclosure, cellresuspension tub system 1700 does not require fluid to be both input andoutput in the same manner. For example, as shown in FIG. 17, a fluidoutput system 1716 may draw fluid (e.g., bearing recovered cells) viatubing through the bottom of the soaking tub 1702 (e.g., and to a cellsalvage device).

Alternatively, or in addition, in some embodiments, fluid may be inputto the soaking tub via another opening in the soaking tub (other than atop opening) and/or fluid may be added to the soaking tub through oneopening (e.g., through the bottom of soaking tub 1702), while fluidcontaining any covered cells is extracted (e.g., using a suction pumpdevice) through another opening of the soaking tub (e.g., via tubing outof the top opening).

D. Example Systems and Devices

The following describes an example integrated cell resuspensionappliance, referred to as the “Agitator,” configured to provide for oneor more of various functions described in this disclosure, in accordancewith one or more embodiments. None of the examples, configurations,and/or features described with respect to the Agitator are to beunderstood as necessarily limiting any embodiment of the presentinvention. Various other embodiments and examples are described in thisdisclosure, and others will be readily understood by those skilled inthe art in light of the descriptions in this disclosure.

According to the example implementation, the Agitator may be configuredas a mechanical device for receiving and moving a sterile, disposableand/or single-use soaking tub (and its associated tubing). In onevariation, the Agitator is 26 inches square by 32 inches tall, with anopening at the top, and rests upon a stand with a plurality of wheels.The example Agitator device has a clear plastic lid on a hinge, allowingthe lid to be open or closed depending on the cycle that is beingutilized (e.g., Open, Start, Fill, Spin, Agitate, or Drain). TheAgitator may be vented (e.g., sharing the same atmospheric pressure asthe surrounding environment), or not, as deemed desirable for aparticular implementation.

The example Agitator device comprises multiple control buttons and adisplay screen for displaying data, on the front of the Agitator. Casedata collection (e.g., collection of information related to a type ofprocedure, length of procedure, surgeon, patient identifier thatuniquely identifies a patient) and transmission may be accomplished viaeither a wireless card or a wired network port (e.g., located on therear of the device).

The example Agitator device comprises a female, multifaceted connectorthat receives and locks the underside of a disposable soaking tub, forrotating or otherwise agitating the soaking tub. The left side of theAgitator, for example, comprises a 4-inch diameter, occlusive, dualheaded roller pump with its heads at 180 degrees in opposition to eachother. The roller pump assembly may sit, by way of example, inside of ametallic raceway. On one side of the metallic raceway is a shapedindentation or socket; on the opposite side of the raceway is adifferently shaped indentation or socket.

The example Agitator device also may comprise an electrically heated,metallic heat exchange surface (e.g., on an inflow tubing channel), madeof a resistive coil under a metal surface designed to heat physiologicfluid via the principle of conduction.

According to the example embodiment, the Agitator device comprises atemperature thermistor and one or more buttons on a front surfaceallowing for user interface and control. On the right side of theexample Agitator are a combination flow sensor and air detector for useon the outflow tubing via a tubing channel (e.g., not more than 1 inchrecessed into the device), a powered automatic occlusion clamp (e.g.,controlled by the Agitator), and a hematocrit sensor. The Agitatordevice is powered by AC current and may or may not include a batterybackup.

According to one embodiment, a cell resuspension tub system may beembodied as a tubing kit comprising: a sterile soaking tub and tubingset, one or both of which may be individually wrapped; a sterile plasticlid cover or sleeve; a sterile plastic panel cover (e.g., self-adhesivefor affixing to a user control panel); a sterile accessory drain line;and/or one or more other items (e.g., sensors, pumps, heaters, etc.).

E. Processes

According to one example process in accordance with some embodiments,one or more users (e.g., nurses or other medical professionals in anoperating room) and/or one or more controller devices may perform one ormore of the following: setting up a cell resuspension system for use;reclaiming cells from surgical laundry via the cell resuspension system;and/or processing resuspended cells for autotransfusion (e.g., via acell salvage system). According to some embodiments, a process forreclaiming cells from surgical laundry via a cell resuspension systemmay comprise one or more of: initiating and/or terminating a fluidfilling process; initiating and/or terminating an agitation process;initiating and/or terminating a fluid removal process; and/or disposingof one or more components of a used cell resuspension tub system.

According to some embodiments, setting up a cell resuspension system foruse may comprise one or more users performing one or more of thefollowing:

-   -   powering on the agitator device    -   opening a lid of the agitator device (e.g., manually, or using        an “Open” button of a user control panel)    -   passing a (sterile) soaking tub onto the surgical field    -   covering the lid with a sterile plastic lid cover    -   inserting or otherwise connecting the soaking tub with the        agitator device (e.g., by inserting the soaking tub into a        female connector at the bottom of the agitator device)    -   removing or otherwise disconnecting a soaking tub (e.g., a        previously used tub) from the agitator device    -   placing inlet tubing in the appropriate location for loading the        inlet tubing (e.g., off the corresponding side of the agitator        device)    -   placing outlet tubing in the appropriate location for loading        the outlet tubing    -   closing the lid (e.g., to maintain sterility of the soaking tub        and the inside of the agitator device)    -   loading the inlet tubing into a heat exchange element    -   loading the inlet tubing into a roller pump assembly    -   loading the outlet tubing through one or more of an occlusion        clamp, a flow sensor, and an air detector    -   removing one or more sterile caps from the ends of the tubing        set    -   attaching an IV bag spike into an IV bag of physiologic fluid    -   opening one or more tubing clamps (e.g., Roberts clamps)    -   connecting a sterile accessory drain line from the outlet tubing        to a cell salvage machine    -   attaching a sterile, self-adhesive plastic cover to a user        control panel of the agitator device

Referring now to FIG. 18, a flow diagram of a method 1800, according toone or more embodiments is shown. The method 1800 will be describedherein as being performed by an integrated controller/agitator device.It should be noted, however, that in some embodiments one or more of thesteps of method 1800 may be performed by a controller device, while oneor more other steps may be performed by another type of device (e.g., acontroller device, a pump, a heater) and/or by a human user. Further anysteps described herein as being performed by a particular type devicemay, in some embodiments, be performed by a human.

According to some embodiments, the method 1800 may comprise providing afluid (e.g., physiologic suspension solution) into a cell resuspensiontub, at 1802. In one embodiment, providing the fluid may be performedmanually by a user and/or in response to an instruction from a user oractuation of a corresponding user control by a user (e.g., via a usercontrol panel or interface). In some embodiments, providing the fluidmay be initiated and/or performed automatically in response to a signalor other communication from a controller device (e.g., in response toexecuting software instructions, in response to receiving a fillinstruction from a user). As discussed with respect to variousembodiments in this disclosure, providing the fluid may compriseinitiating an automated fill process for transmitting fluid from a fluidsource (e.g., an IV bag) via a tubing system, and/or starting andcontrolling a pump device to fill a cell resuspension tub. As describedin this disclosure, the fluid may comprise a physiologic suspensionsolution that may include one or more agents.

The method 1800 may comprise, in some embodiments, agitating the cellresuspension tub (e.g., automatically) by an agitator device, at 1804.For example, as discussed with respect to various embodiments in thisdisclosure, agitating a cell resuspension tub (e.g., including fluid andsurgical laundry inserted by a user or otherwise received by a cellresuspension system) may comprise operating a motor to rotate orotherwise agitate a cell resuspension tub removably coupled to themotor. In one embodiment, a controller device may transmit a signal tostart a rotating motor. In some embodiments, agitating the cellresuspension tub may comprise agitating fluid and/or and at least oneitem of surgical laundry (e.g., bloody surgical sponges) in the cellresuspension tub.

The method 1800 may comprise, according to some embodiments, removingfluid from the cell resuspension tub, at 1806. In some embodiments,removing fluid may comprise removing at least a portion of the fluidprovided to the cell resuspension tub (at 1802) along with any cellsreleased from surgical laundry and resuspended in the fluid. In one ormore embodiments, the removed fluid may comprise physiologic suspensionsolution, resuspended cells, and/or at least one drug or other agent.Various embodiments for draining or otherwise removing fluid andrecovered cells from a tub are described in this disclosure.

According to some embodiments, the method 1800 may further comprise oneor more of: transmitting the removed fluid to at least one of a cellsalvage device and an autotransfusion device, and maintaining a desiredtemperature of fluid (e.g., within a predetermined temperature range)using a thermometer and/or heater. Maintaining a desired temperature mayinclude heating and/or monitoring fluid before it enters the cellresuspension tub, while it is in the tub, and/or after it is removedfrom the tub. In one example, fluid is maintained at approximately anormothermic temperature for the type of cells being recovered (e.g.,the normothermic temperature of 98.6 F for human blood).

According to an illustrative and non-limiting example of a method of useof a cell resuspension system comprising an example integratedcontroller/agitator device and tub system or kit (comprising a soakingtub and corresponding tubing set), the example agitator device andsoaking tub are designed to work in concert with each other. Theagitator device is a reusable device and the soaking tub (with itscorresponding tubing set) is a disposable, single-use device. Theagitator device is designed, according to the non-limiting example, tobe set up and operated in a sterile operating room environment byoperating room personnel (e.g., a “scrub” nurse and/or a “circulating”nurse). Although described with respect to a single nurse, it will bereadily understood that respective steps may be performed by any numberof users. According to the example method, when the agitator device isto be used, the individually wrapped and sterile disposable soaking tuband tubing set are passed onto the sterile field to the “scrubbed” ORpersonnel for setup. The agitator device preferably is positioned nextto the surgical field and plugged into AC current by the circulatingnurse. A nurse, for example, may cover the lid with supplied sterileplastic lid cover, and also insert the soaking tub into a multifacetedfemale receiver at the bottom of the agitator device. The nurse may alsoplace the inlet side of the tubing off the appropriate side of theagitator device, place the outlet tubing off the appropriate side of theagitator device, and close the lid, as the inside of the device is nowsetup and sterile. A nurse may load the inlet tubing into a heatexchange surface of the agitator device and into a roller pump assembly,and load the outlet tubing through the occlusion clamp, flow sensor, airdetector, and hematocrit sensor of the agitator device. The sterile capon the end of the tubing set may be left on the tubing until the systemis ready for use.

Continuing with the illustrative example method of use, a nurse attachesIV bag spikes of the inlet tubing into a physiologic fluid IV bag andopens the tubing clamps (e.g., Roberts clamps). The nurse also attachesthe sterile accessory drain line to an operating room cell salvagemachine and attaches a sterile self-adhesive plastic button cover to anoperator panel of the agitator device. Before, after, orcontemporaneously with the insertion (e.g., by a nurse) of at least onebloody surgical sponge into the soaking tub, a nurse presses a “Fill”button of the agitator device that fills the soaking tub with an amountof physiologic solution (e.g., an amount approximately ⅔ of the totaltub capacity, approximately 360 mls of fluid). If desired, additionalsoak volume may be added to the soaking but by depressing and holdingthe fill button again.

Continuing with the illustrative example method of use, a user presses a“Start” button of the agitator device, causing the lid to lock, themultifaceted receiver to attach to the underside of the soaking tub, anda drain clamp of the agitator device to occlude the tubing set. Themultifaceted receiver engages the tub and begins the agitation of thesponges. This agitation may continue for a period of time sufficient toliberate the blood from the sponge. The period of time may bepredetermined and the agitation may be terminate automatically by theagitator device. Alternatively, or in addition, the agitation processmay be terminated at any time manually by a user pressing a “Stop”button (e.g., of a user control panel). For instance, this may allow anoperator to place more bloody sponges in the agitator device (e.g., asthey are collected). Pressing a “Start” button again after a stopresumes a previously started cycle where it was terminated.

Continuing with the illustrative example method of use, after theprocess of agitating the soaking tub (e.g., after the completion of apreprogrammed cycle and/or upon actuation of a “Finish” button by auser), the agitator device may automatically sound an alert (e.g.,“cycle complete” alert) and/or open the closed occlusion clamp to allowthe bloody suspension fluid to drain from the vessel. In one example,the fluid is exposed to suction created by a cell salvage or otherdevice, in order to drain the tub. Once an air detector detects air inthe outlet tubing, the occlusion clamp again engages and occludes theoutlet tubing. In one example, the device may automatically (and/or atthe initiation of a user) “dry spin” the tub (e.g., for a three minutecycle) at a speed designed to further remove blood from the spongesthrough centrifugal motion. Once the air detector again (or still)detects air in the outlet tubing, indicating the tub is empty, theagitator device may cause the occlusion clamp to again engage andocclude the outlet tubing. The operator may press an “Option” button toopen the lid and may remove the processed sponges. Once the processedsponges are out of the soaking tub, the operator may again initiate afill function (e.g., by pressing a “Fill” button) to fill the soakingtub with physiologic solution, in preparation for more blood soakedsurgical sponges. If no additional sponges need to be washed (e.g., asurgical operation has been completed), the operator may “unload” thesoaking tub and tubing set (e.g., by disconnecting it from the agitatordevice). A nurse may dispose of the soaking tub and/or the tubing set(s)(e.g., in an appropriate biohazard container).

According to the illustrative example method, the integratedcontroller/agitator device may display case information via a displayscreen of the device. For example, the device may display one or moreof: a volume of physiologic solution used, a volume of bloody suspensionfluid out, a temperature of the fluid, a number of cycles processed,and/or an average hematocrit value of the suspension fluid.

F. Example Interfaces and Applications

One or more of the methods described in this disclosure may involve oneor more interface(s). One or more methods may include, in someembodiments, providing an interface through which a user may (i) submit,request, and/or receive information about a patient and/or cells(reclaimed and/or to be reclaimed) and/or (ii) initiate one or moresteps of a cell resuspension process.

In one hypothetical example, a program being executed by a processor(e.g., embodied in a cell resuspension controller device) initiates aprocess via a user interface to reclaim blood cells from bloody surgicallaundry. Information about different blood reclamation options may bereceived from a user via the user interface, and various types ofinformation about the processing, fluid involved in the resuspensionprocess, and/or recovered blood cells may be displayed and/or otherwiseoutput to the user via the user interface.

FIG. 19 illustrates an example interface 1900, according to one or moreembodiments, by which a user (e.g., a medical professional operating acell resuspension controller device of a cell resuspension system) mayinitiate various phases of a cell resuspension process to extract cells(e.g., red blood cells) from surgical sponges, instruments, organs,human and/or animal tissue, and/or other types of surgical articles.

Example elements of interface 1900 include a button 1902 to initiate aprocess of filling a soaking tub, a button 1904 to initiate a washingprocess to collect cells from surgical articles, a button 1906 to stopthe washing process, and a button 1908 to release and/or open a lid(e.g., lid 704 of example cell resuspension system 700). For example,pressing any of the buttons 1902, 1904, 1906, and/or 1908 may cause acontroller device (e.g., cell resuspension controller device 711) toperform the corresponding function (e.g., in accordance withcorresponding computer readable software instructions executable by aprocessor of the controller device).

Interface 1900 may further comprise one or more input controls 1910 forincreasing, decreasing, inputting, modifying, and/or selecting values,settings, and/or options by a user. In one example, input controls 1910may be configured as arrow buttons for moving between options and/orfields on the user interface. Although only two arrows are depicted inFIG. 19, it will be readily understood that any number of arrows (e.g.,left and right arrows) and/or types of input controls (e.g., buttons,pointer devices, keyboards, touchpads, arrow keys, etc.) may be used asdeemed desirable for a particular implementation. In some embodiments,any one or more of buttons 1912 may be configured to allow a user toassign one or more functions to the button(s).

In one embodiment, a user may have the ability to enter data using theinterface 1900 (e.g., via corresponding form fields), such as, withoutlimitation, case data, patient name, name(s) of a surgeon and/or othermedical personnel, an identifier that identifies a type of surgery, atype of drug (e.g., a drug or other agent added to a solution beingadded to a soaking tub), a concentration of drug, and an amount of drugused). In some embodiments, one or more types of information may beretrieved (e.g., by a controller device) from one or more remote dataservers.

In some embodiments, various types of information may be presented to auser via interface 1900. For example, as shown in FIG. 19, informationtransmitted to a user via interface 1900 may comprise, withoutlimitation, one or more of the following:

-   -   information related to a number of cell resuspension cycles        processed and/or scheduled    -   information related to a volume or other measure of fluid input        to a cell resuspension system (e.g., 1450 ml)    -   information related to a volume or other measure of fluid        recovered and/or processed by a cell resuspension system (e.g.,        2700 ml)    -   information related to a volume or other measure of cells (e.g.,        blood cells) lost from a patient (e.g., 1250 ml)    -   information related to a temperature of fluid being input to        and/or processed by a cell resuspension system (e.g., an average        temperature)    -   information related to a measure of resuspended cells per volume        of fluid (e.g., an average hematocrit (HCT) percentage level)    -   information related to a previous, current, and/or future status        or phase of a cell resuspension process (e.g., “Washing”,        “Complete”, “Lid open”, “Tub filling”)    -   information related to how long a previous, current, and/or        future status or phase of a cell resuspension process has taken        or will take (e.g., “Wash time remaining—150 seconds”)    -   information related to a count of surgical laundry or other        articles (e.g., a count of surgical sponges including RFID chips        inserted into a soaking tub (“IN”) and/or a count of surgical        sponges removed from a soaking tub “OUT”))    -   current date and/or time information    -   information related to a patient (e.g., a patient whose blood is        being resuspended)

According to one embodiment, the volume salvaged from the contents of asurgical sponge or other article may be calculated as a differencebetween a volume of physiologic fluid in and a volume of physiologicsolution out. For example: 2700 ml (volume of bloody suspension solutionout)−1450 ml (volume of physiologic solution in)=1250 ml (volume ofreclaimed volume). In some cases, items such as surgical laundry may becontaminated with irrigation fluid or other types of fluids, and notsolely blood. Accordingly, in some embodiments, it may or may not bepossible to determine whether the additional volume removed from a cellresuspension tub includes not just blood or other types of recoveredcells, but also one or more fluids that were collected by the surgicallaundry and released during the cell resuspension process.

Although certain types of information are illustrated in the exampleinterface 1900, those skilled in the art will understand that theinterface 1900 may be modified in order to provide for additional typesof information (e.g., other patient information) and/or to remove someof the illustrated types of information, as deemed desirable for aparticular implementation.

Although interface 1900 is illustrated as a single interface, thoseskilled in the art will readily understand, in light of the presentdisclosure, that the features and information of the example interface,or a subset of such features and information, may be included in morethan one interface, control panel, screen display, or applicationwindow.

FIG. 20 depicts a cross-section view of an example cell resuspension tubsystem 2000, according to one or more embodiments. According to someembodiments, cell resuspension tub system 2000 may comprise one or moreof the following types of components: a tub (e.g., with or without aflange or collar circumscribing the tub), a plate, a fin (e.g., with orwithout one or more notches for securing a plate), a tub cover, a tubflange and/or a strainer. As discussed with respect to variousembodiments in this disclosure, a tub system may, alternatively or inaddition, include one or more of the following types of components: asensor, a tub wall opening, tubing, a tubing connection, an IV bagspike, and/or an IV bag. If a particular type of component is utilized,it will be understood that the cell resuspension tub system 2000 maycomprise one or more of that particular component.

According to some embodiments, soaking tub 2002 may comprise a vessel orcontainer with an opening for receiving one or more articles (e.g., thatinclude cells and/or fluids). Some examples of a soaking tub, andfeatures and/or components of a soaking tub, are discussed in thisdisclosure with respect to FIG. 2. For example, in accordance with oneor more embodiments, soaking tub 2002 may comprise one or more walls. Inthe case of dual walls, the soaking tub may comprise one or moreopenings in an inner tub wall. As also discussed in this disclosure,soaking tub 2002 may be configured to be mounted in, on, or otherwiseconnected mechanically to an agitator device and/or a cell resuspensioncontroller device.

In some embodiments, inlet tubing 2012 and/or outlet tubing 2016 may beattached to, secured to and/or connected to the soaking tub 2002. In oneembodiment, inlet tubing 2012 may be secured to the soaking tub 2002 byrunning through an opening, holder, bracket, clip, clamp and/or othersecuring mechanism (and/or combination of two or more such mechanisms)connected to the outer wall of the soaking tub 2002. As depicted in FIG.20, in accordance with some embodiments, inlet tubing 2012 may besecured to the soaking tub by being run through a hole in a tubingholder 2014 that is attached to or integrated with an outer wall of thesoaking tub, and/or outlet tubing 2016 may be similar secured to atubing holder 2018. In one embodiment, both inlet tubing 2012 and outlettubing 2014 may be secured to the same tubing holder and/or may be runthrough the same opening to secure the tubing to the soaking tub.Although FIG. 20 depicts the tubing holders as being on opposite sidesof the soaking tub, a tubing holder may be provided any place on thesoaking tub deemed desirable for a particular implementation.

According to some embodiments, cell resuspension tub system 2000 maycomprise a strainer. In the example depicted in FIG. 20, a strainercomprises a shaft 2003 that is connected to a plate 2006 (also referredto in this disclosure as a “strainer plate”). As depicted in FIG. 20, astrainer may also include, in some embodiments, a handle 2004, knob orother means connected to the shaft 2003, by which a user may verticallymove the strainer by raising or lowering the handle. In someembodiments, the strainer may be rotatable. For the example strainerdepicted in FIG. 20, a lower end of the shaft 2003 is connected to theplate 2006, the shaft protrudes through a lid 2020, and the upper end ofthe shaft terminates with the handle 2004.

According to some embodiments, surgical laundry or other types ofarticles in the soaking tub 2002 (above the plate 2006) may be drawn uptoward the top of the soaking tub (e.g., for extraction of excess fluidand removal of the articles by a user) by raising the strainer.

According to various embodiments, the lid 2020 may be permanentlysecured to the top of the soaking tub, may be removably secured to thesoaking tub (e.g., by screwing and/or clamping the lid on) and/or may beplaced on top of the soaking tub without being secured (e.g., other thanby its own weight). In some embodiments, as discussed in thisdisclosure, the lid 2020 may comprise one or more openings (e.g., forremoving articles from the interior of the soaking tub).

According to some embodiments, one or more blades or fins (depicted inFIG. 20 as three example fins 2010 a-c) may be connected to and/orintegrated with the interior bottom and/or inner wall of the soaking tub2002 (e.g., to assist in agitating any fluid in the soaking tub 2002).The fins 2010 a-c may therefore protrude into the interior of thesoaking tub 2002, and in some embodiments, as depicted in FIG. 20, mayprotrude to a point that is within the outer circumference of the plate2006. Accordingly, in one or more embodiments, a plate may be configuredwith one or more gaps or spaces (not shown in FIG. 220) that start atthe outer edge of the plate and allow the plate to pass through the fins2010 a-c (and vice versa) when the plate is raised or lowered. In thisway, a user raising the plate (e.g., by pulling up on the handle) toretrieve articles in the soaking tub, for example, may be able toretrieve articles from the area of the soaking tub between thecentermost part of the fins and the inner wall of the soaking tub.Otherwise, if the plate is configured without gaps and/or is configuredwith a radius small enough to allow it to pass up through the middle ofany fins, such articles might be missed by the plate.

According to some embodiments, one or more of fins 2010 a-c may beconfigured with one or more respective notches 2010 a-1, 2010 b-1 and2010 c-1, for receiving and/or securing the plate 2006 at a desiredheight in the soaking tub. In one or more embodiments, the height of thenotches is sufficient to allow the height of the plate to pass throughthe notches. In one example, a user may rotate the plate to align anygaps in the plate with the fins 2010 a-c, raise the plate up to thelevel of the notches, and then rotate the plate again so that theoutermost portion of the plate rotates into the notches 2010 a-1, 2010b-1 and 2010 c-1. With the plate in the notches (as depicted), the platecannot be raised or lowered. In an alternative embodiment, the fins maybe configured such that the plate cannot be lowered (e.g., such that theplate rests on a “shelf” on the fins, but can still be raised withoutbeing rotated (e.g., the portion of the fins above the “shelf” isremoved).

FIG. 21 depicts a cross-section view of an example cell resuspension tubsystem 2100 (e.g., that may be part of a cell resuspension tub system),in accordance with one or more embodiments. As depicted, the examplecell resuspension tub system 2100 comprises a strainer with a shaft 2103connected to handle 2104 and to plate 2106. The plate 2016 is shown inFIG. 21 as having been raised to the lowest of three respective sets ofnotches in each one of the fins. In the example system depicted in FIG.21, notches 2110 a-1, 2110 a-2, and 2110 a-3 of fin 2110 a correspond tonotches 2110 b-1, 2110 b-2, and 2110 b-3 of fin 2110 b. The dashed linesin FIG. 21 represent other some possible resting places for the exampleplate (e.g., at the bottom of the soaking tub, at higher notches on thefins).

FIG. 22 depicts a cross-section view of another example cellresuspension tub system 2200, in accordance with one or moreembodiments. As depicted, a strainer plate 2206 has been raised to andsecured or rested at the highest position available using notches in thefins 2210 a and 2210 b (a third fin is also depicted in the center ofthe example tub).

A user may find it advantageous, in accordance with one or moreembodiments, to have one or more different levels to which the plate maybe raised and/or at which the plate may be rested. Different levels maybe more convenient for different respective purposes (e.g., forretrieving surgical laundry) and/or with respect to different amounts ofsurgical laundry or other articles. In accordance with one or moreembodiments, a user may raise the plate and compress any articles in thesoaking tub between the plate and the underside of the lid 2220 (e.g.,in order to extract solution and/or additional cells from the articles).Depending on the number or volume of the articles in the tub, aparticular level may be desirable (e.g., for compression and/or forfacilitating removal of the articles).

In accordance with one or more embodiments, surgical laundry 2222 isdepicted in FIG. 22 between the plate 2206 and the underside of lid2204. As shown, solution from the surgical laundry 2222 may pass throughone or more holes or other openings in the plate 2206 and collect withsolution 2224 at the bottom of the soaking tub. As described withrespect to various embodiments in this disclosure, solution 2224 may beoutput (e.g., by a user activating a pump control via a controllerdevice) from the soaking tub through a filter 2214 and outlet tubing2216. Some examples of filters that may be used in accordance with someembodiments are described with respect to FIG. 2.

FIG. 23 depicts a top view of an example cell resuspension system 2300,in accordance with one or more embodiments. In particular, FIG. 23 showsa top view of an example lid assembly 2320. Lid assembly 2320, inaccordance with one or more embodiments, may comprise a first lidportion 2330, a second lid portion 2332 and a lid opener 2334. As shownin FIG. 23, lid portion 2330 may be rotatably connected to lid portion2332 so that a user may use lid opener 2334 (attached to lid portion2332) to rotatably slide lid portion 2332 under lid portion 2312,creating an opening into the interior 2340 of the soaking tub. A usermay insert and/or retrieve surgical laundry, for example, through theopening, which may be configured to be any size desirable. As discussedin this disclosure, a user may utilize handle 2304 to rotate the plateto align spaces on the plate with any fins, as necessary, for raisingand lowering the plate.

FIG. 23 also depicts an example flange 2314 that circumscribes thesoaking tub (not shown). The flange 2314 includes an opening 2316 and anopening 2318 through which tubing (e.g., inlet and/or outlet tubing) maybe run (e.g., to secure it while the soaking tub is agitated).

FIG. 24 depicts a top view of an example strainer plate 2400, inaccordance with one or more embodiments, for use with a cellresuspension tub system. As discussed in this disclosure, the strainerplate 2400 may be used in a soaking tub, for example, as part of astrainer for removing and/or compressing articles. As shown in FIG. 24,the strainer plate 2400 may include an opening 2401 for receiving and/orotherwise connecting the plate to a shaft of a strainer. In one example,the opening may be threaded for receiving a correspondingly threadedshaft. The example strainer plate 2400 further comprises three gaps 2402a-c in an outer portion of the strainer plate. As discussed with respectto FIG. 20, the size, shape and/or position of each of the gaps 2402 a-cmay correspond to the respective size, shape and/or position of one ormore fins of a soaking tub, for allowing the plate to pass around and/orthrough the fins when the gaps in the plate are properly aligned withthe fins.

As further shown in FIG. 24, the plate 2400 may comprise one or moreholes 2406 for allowing solution to drain through when the plate israised and/or articles are compressed (e.g., against the underside of alid). In this way, additional resuspended cells may be retrieved fromsurgical laundry and other types of articles.

According to some embodiments, as discussed in this disclosure, astrainer may be vertically moveable for drawing surgical laundry thatwas placed into a soaking tub up toward the top of the soaking tuband/or above the level of solution used in the soaking tub during a cellresuspension process. Accordingly, a strainer plate may be configured topermit suspension solution (e.g., including resuspended cells recoveredfrom surgical laundry) to pass through (e.g., via one or more holes oropenings in the plate) and/or around the plate (e.g., between the outercircumference of the strainer plate and the interior wall of the soakingtub). At the same time, the strainer plate preferably is configured alsoto prevent (or substantially prevent) surgical articles from passingthrough or around the plate. For example, any holes configured to allowfluid to pass through the strainer preferably are small enough not toallow any articles to pass through the plate. Similarly, any gap betweena strainer plate and the interior wall of a soaking tub preferably issmall enough to prevent articles from passing through the gap.

FIG. 25 depicts a perspective view of an example cell resuspension tubsystem 2500, in accordance with one or more embodiments. The lidassembly 2520 is shown as it might be aligned for placement on top ofsoaking tub 2502. As shown in FIG. 25, in accordance with one or moreembodiments, soaking tub 2502 may include fins 2510 a-b and a shaft 2503of a strainer connected to handle 2504 and plate 2506. Example plate2506 is depicted as having its gaps aligned for moving the plate aroundthe fins 2510 a-b (e.g., for raising and lowering). The example soakingtub 2502 further comprises a flange 2514 (e.g., for resting on areceiving portion of an agitator device).

In some embodiments, plate 2506 may comprise one or more depressions orchannels configured to allow suspension fluid to run off of the plate(e.g., and to the bottom of the soaking tub). Alternatively, or inaddition, plate 2506 may be concave or convex, in accordance with adesired implementation.

FIG. 26 depicts a perspective view of an example base unit 2600 of acell resuspension system, in accordance with one or more embodiments.According to some embodiments, the base unit 2600 may comprise one ormore of the following types of components: a mast, a sensor, a clamp(and/or other type of flow control device, such as a pump or clampingvalve), a heater, a flow probe, a control panel, a controller device,tubing, an agitator device, a barrel (e.g., for receiving a soakingtub), a mobile platform (e.g., a stand or cart on wheels), tubing, atubing connection, an IV bag spike, and/or an IV bag. If a particulartype of component is utilized, it will be understood that the base unit2600 may comprise one or more of that particular component (e.g., twomasts, three sensors, one heater, etc.).

According to some embodiments, the base unit 2600 of a cell resuspensionsystem comprises an agitator barrel 2602 configured to receive a soakingtub and/or cell resuspension tub system (not shown). In one embodiment,the agitator barrel is configured with a depth and shape appropriate toreceive a corresponding soaking tub. In one or more embodiments, theagitator barrel may be placed on, integrated with and/or connected to amobile platform 2604. One or more of the agitator barrel 2602 and themobile platform may include an agitator device (or one or morecomponents of an agitator device) for agitating a soaking tub installedin the agitator barrel. In one embodiment, an agitator device may bemounted and or attached to a mast or IV pole. Various embodiments andcomponents of agitator devices (e.g., motors, drive shafts, couplers forconnecting to a soaking tub, power supplies, etc.) are described in thisdisclosure. In one example, the agitator barrel 2602 may be configuredwith a connector at the bottom of the barrel (not shown) for rotatablycoupling with a soaking tub, as discussed with respect to FIG. 5.

According to some embodiments, the base unit 2600 may comprise one ormore RFID sensors 2603 (e.g., connected to and/or integrated with theagitator barrel 2602) for use in detecting RFID chips or other memorydevices. In some embodiments, as discussed in this disclosure, RFIDsensor(s) 2603 may be used to detect and/or count a number ofRFID-enabled surgical sponges and/or other types of articles comprisingRFID chips that are passed into and/or out of the agitator barrel 2602(e.g., passed into and/or out of a soaking tub installed in the agitatorbarrel 2602). In one embodiment, RFID sensor(s) 2603 may substantiallyencircle the agitator barrel to detect and count surgical articlespassing through the RFID sensor(s). In one example, in a manner similarto how the SmartSponge® System by ClearCount Medical Solutions detectsand counts sponges deposited in that system's receptacle, the RFIDsensor(s) 2603 may be arranged to detect surgical articles passing intoand/or out of the agitator barrel. The number and/or placement of theRFID sensor(s) may otherwise be configured in a desired implementationto provide for detection and counting of RFID-enabled articles. In someembodiments, the RFID sensor(s) 2603 may be in electronic communicationwith the control panel 2626 (e.g., via a wireless connection, via awired connection passing through the mast 2628) and/or one or more othercontroller devices (e.g., for transmitting an indication of a count ofdetected RFID chips and/or other information about RFID-enableddevices).

In one embodiment, as shown in FIG. 26, the mobile platform 2604 maycomprise one or more wheels 2606 to allow the platform to be movedeasily. In some embodiments, one or more of the wheels 2606 may belockable and/or may include a brake (e.g., to prevent or limit movementof the mobile platform, such as while a cell resuspension system is inuse and/or for storage purposes).

According to some embodiments, the base unit 2600 further comprises atleast one mast for connecting to and/or supporting one or morecomponents of the base unit. As depicted in FIG. 26, masts 2608 and 2624may support various example components of the base unit. In someembodiments, one or more masts may be connected to the base unit;alternatively, or in addition, one or more masts may be separate fromthe base unit (which may be in communication, in a wired or wirelessmanner, with one or more components attached to the separate mast).

Example mast 2608 generally includes components related to inputtingfluid to a soaking tub, such as IV bag support 2610 and IV bags 2612(e.g., for attaching to inlet tubing for filling a soaking tub) andexample input modules 2614, 2616 and 2618. In accordance with someembodiments (as depicted in FIG. 26) one or more masts attached to thebase unit 2600 may comprise one or more bends, curves, and/or corners sothat the upper portion of the mast is farther from the vertical axis ofthe base unit, relative to at least some other portion of the mast(e.g., the lower portion where the mast attaches to the base unit). Inthis way, an open area may be provided next to and/or above the baseunit, and/or between two or more masts of the base unit, facilitatingaccess by a user to the base unit (and/or any installed soaking tub).

The configuration of the base unit as depicted in FIG. 26 mayadvantageously allow for filling of a soaking tub without a pump byhanging the IV bags 2612 and allowing gravity to drain fluids from theIV bags and into the soaking tub. Alternatively, or in addition, one ormore embodiments may provide for one or more pumps for filling a soakingtub and/or removing fluid from a soaking tub.

According to some embodiments, the height of one or more masts of a cellresuspension system may be adjustable. Accordingly, a user may be ableto adjust the height of a mast, such as, for example, to change theheight of a hanging IV bag in order to achieve a desirable fluid levelin a soaking tub (e.g., to avoid overflowing the soaking tub). In oneexample configuration of a cell resuspension system, the height of amast, IV bag support, and/or IV bags may be limited, for example, sothat the height of a source of fluid (e.g., physiologic suspensionsolution) is no higher than the top of a soaking tub receiving the fluid(e.g., in cell resuspension tub system 2702). In this way, theconfiguration of the cell resuspension system may prevent fluid levelsin a soaking tub from spilling over the top of the tub, which wouldresult in the contamination of the device and the potential loss ofcells intended for the patient.

According to some embodiments, where more than one mast is utilized, themasts may be placed and/or configured (e.g., with one or more bends) tohave a distance from one another sufficient to allow a user to accessthe agitator barrel and/or soaking tub installed in the base unitwithout making contact or interfering with (e.g., with legs, arms orshoulders) either mast. In this way, the configuration of the mastsrelative to one another may contribute the maintaining the sterility ofa cell resuspension system in a controlled environment (e.g., in asterile surgical field). According to some embodiments, where two ormore masts are used (e.g., masts 2608 and masts 2624), the masts may beplaced advantageously at a distance sufficient for allowing a user tointeract with a soaking tub and/or agitator device disposed between themasts, in a controlled environment (e.g., a sterile surgical field)while maintaining the sterility of the masts and/or any componentsconnected to the masts. In one example, the masts may be disposed at adistance sufficient to accommodate a user's shoulders and arms while theuser operates the soaking tub and/or agitator device, such as a distanceof approximately 24 inches to 32 inches (e.g. 28 inches). In someembodiments, the system may be configured to allow for increasing and/ordecreasing the distance between two or more masts (e.g., in order toaccommodate different users).

As depicted in FIG. 26, one or more of the example input modules may beconnected to the mast 2608 using one or more brackets 2620, and one ormore of the input modules may include one or more tubing holders 2622(e.g., clips, fasteners, or the like) for holding tubing in place and/orconnecting tubing to a module (or modules).

Input modules 2614, 2616 and 2618 may comprise, by way of example andwithout limitation, one or more of the following: a flow/air detector, atemperature sensor, a heater, and/or a flow control device (e.g., clamp,clamping valve and/or pump). In one example, input module 2614 maycomprise an auto-clamp (e.g., controlled via a controller device) forcontrolling the flow of fluids from IV bags 2612, input module 2616 maycomprise a heater and/or temperature sensor, and input module 2618 maycomprise a flow probe and/or other type of flow detector or airdetector. In some embodiments, one or more the example input modules maynot be attached to the mast 2608 and/or may be integrated into tubingrather than being separate from and/or configured to connect to tubing,as depicted in FIG. 26.

Example mast 2624 generally includes components related to removingfluid from a soaking tub, such example output modules 2630, 2632 and2634. As depicted in FIG. 26, the mast 2624 further comprises a controlpanel 2626 for controlling one or more functions of a cell resuspensionsystem and/or providing information about a cell resuspending systemand/or process. It will be readily understood that the control panel maybe mounted on either of the example masts depicted in FIG. 26, or maynot be attached to a mast at all (e.g., so long as the control panel isable to communicate by wires or wirelessly with any required modulesand/or agitator devices). In some embodiments, the control panel 2626may be covered by a sleeve 2628 (e.g., for preserving the sterility of auser's gloved hand).

One or more of the example output modules may be connected to the mast2624 using one or more brackets 2636, and one or more of the outputmodules may include one or more tubing holders 2638. Output modules2630, 2632 and 2634 may comprise one or more of the example componentsdiscussed above with respect to the input module 2614, 2616 and 2618.Similarly, one or more the output modules in some embodiments need notbe attached to the mast 2624 and/or may be integrated into outlettubing.

One or more of the modules may include and/or otherwise be connected toa power source and/or may be in communication with a controller device(e.g., control panel 2626), as discussed in this disclosure. Accordingto some embodiments, mast 2608 and/or mast 2624 may be hollow and/orotherwise configured for allowing electrical wiring and/or cables to runthrough the mast (e.g., for connecting to a controller device and/or apower source). In other embodiments, such wires or cables may beattached to the outside of the mast for convenience and to avoidinterference with users and other equipment.

Although two masts are depicted for purposes of illustration, it will bereadily understood that any number of masts may be utilized as deemedappropriate for a particular implementation. Similarly, althoughexamples of particular components (and particular numbers of suchcomponents) are shown for discussion purposes as being on a particularmast in the example configuration, it will be understood that not all ofthe depicted components may be necessary or desirable, that one or morecomponents of the base unit need not necessarily be connected to a mast(even if depicted so in FIG. 26) and/or that one or additionalcomponents may be utilized in some embodiments.

In some embodiments, the mobile platform 2604 may comprise one or moreweights or ballast and/or may be constructed of dense material, in orderto provide a counterweight to any masts and/or mast-mounted components(e.g., to prevent the base unit from tipping over). In one alternativeembodiment, a platform of the base unit 2600 may be configured withoutwheels and/or may be configured to be stationary (and/or portable bycarrying rather than rolling or sliding). In some embodiments, the baseunit may comprise one or more handles (not shown) for convenience incarrying, rolling and/or sliding the base unit.

FIG. 27 depicts a perspective view of an example cell resuspensionsystem 2700, in accordance with one or more embodiments, in which a cellresuspension tub system 2702 is inserted into or otherwise connected toan agitator barrel 2602 of a base unit (e.g., base unit 2600). Asdepicted in FIG. 27, inlet tubing 2712 is connected to IV bags 2612 and(held in place by brackets 2622) runs through input modules 2614, 2616and 2618. Inlet tubing 2712 runs through an opening in flange 2718 ofthe cell resuspension tub system 2702. As discussed with respect to FIG.20, the inlet tubing may be connected to a soaking tub (e.g., via ay-type connection (not shown)) for filling the soaking tub. As depictedin FIG. 27, the height of the flange 2718 on the tub system may beconfigured to allow the flange to rest on an upper surface of theagitator barrel 2602 when the cell resuspension tub system 2702 is fullyinserted in and/or fully connected to the agitator barrel. Wheninserted, as discussed above, the cell resuspension tub system mayengage with an agitator device (not shown) at the bottom of the agitatorbarrel for agitating the soaking tub of the tub system.

As discussed above with respect to FIG. 26, in some embodiments theagitator barrel 2602 may comprise one or more RFID sensors.Alternatively, or in addition, the cell resuspension tub system 2702 maycomprise one or more RFID sensors connected to and/or integrated with asoaking tub for use in detecting RFID chips or other memory devicesplaced into and/or or out of the soaking tub. In some embodiments one ormore RFID sensors may be integrated into the flange 2718. In oneembodiment, one or more RFID sensors may be connected wirelessly and/orvia a wired connection 2719 to control panel 2626 (e.g., fortransmitting an indication of a count of detected RFID chips and/orother information about RFID-enabled devices).

As depicted in FIG. 27, the cell resuspension system 2700 further mayinclude outlet tubing 2716 of the cell resuspension tub system 2702,which exists the tub system through an opening in flange 2718 and (heldin place by brackets 2632 runs through output modules 2630, 2632 and2634. In some embodiments, the outlet tubing 2716 may be connected to acell salvage machine (e.g., for storing saved cells and/or forre-infusion in a patient).

FIG. 28 is a perspective view of an alternative example connector 2800of an agitator device, according to one or more embodiments, forconnecting to a cell resuspension tub system. Similar, in some respects,to the example connector 1500 (FIG. 15), example connector 2800 maycomprise a tubing channel 2802 for receiving and holding tubing securelywhen the connector 2800 is coupled with a soaking tub.

In one or more embodiments, as depicted in FIG. 28, the tubing channel2802 of example connector 2800 may comprise at least one lockingposition 2804 (e.g., a respective locking position at each of theopposite ends of the tubing channel 2802) adapted to receive and toreleasably secure tubing 2808 (e.g., a y-type tubing connection). In oneexample, as depicted in FIG. 28, the connector 2800 may be configuredsuch that an upper portion of the outer rim of the connector overhangsat least a portion of each end of the tubing channel 2802. In oneexample, a user may connect a soaking tub to the connector 2800 byinserting tubing 2808 into the tubing channel 2802 and sliding orotherwise securing respective portions of the tubing 2808 under theportions of the connector's rim that overhang the tubing channel 2802.In one embodiment, positioning the tubing 2808 into the locking position2804 releasably secures the tubing 2808 and the soaking tub to which thetubing is connected (e.g., the tubing may be comprised of a rigidmaterial). In one example, the locking position(s) 2804 holds the tubing2808, preventing the tubing from moving upward out of the tubing channel2802. Accordingly, this may allow a soaking tub to be connected securelyto an agitator device (e.g., for rotating the soaking tub) by couplingrespective connectors together but without requiring that the connectorsthemselves be fastened together other than by securing the tubing 2808in the locking position(s) 2804.

In one or more embodiments, as described in various embodiments in thisdisclosure, the tubing channel 2802 may allow for tubing 2808 and/ortubing 2806 (e.g., y-type tubing connection 222) to pass into acorresponding connector (e.g., of a cell resuspension tub system, suchas connector 1202 of FIG. 12) to which the connector 2800 may be coupledand/or releasably secured. Accordingly, fluid may be allowed to passinto and/or out of a soaking tub while the tub is coupled via aconnector of a soaking tub to connector 2800 of a drive shaft assembly(e.g., of a motor or other type of agitator device) for rotating thesoaking tub. Although the example connector 2800 is depicted as beingsubstantially circular in shape, it will be readily understood in lightof this disclosure that connectors may be configured in any of variousshapes and/or sizes suitable for a desired implementation.

In one or more embodiments, a cell resuspension system may comprise oneor more filter bags of one or more various types (e.g., used inside of asoaking tub). In one example, a filter bag inserted through a lid of asoaking tub and having at least one drawstring may contain surgicallaundry and/or biologic materials. In one example, the drawstrings maybe extended relative to the filter bag to decrease the surface areaavailable inside of the filter bag, such that the contents of the filterbag would be compressed and expel suspension fluid (and any suspendedcells) into the soaking tub (e.g., for transfer to a secondary cellsalvage device and/or tissue treatment device). Accordingly, thearticles may be made ready for removal from a soaking tub and may beeasily disposed of. In some embodiments, the counted contents of acollapsed or compressed filter bag may be compared to an RFID count ofsurgical sponges upon their removal from a soaking tub. In someembodiments, filter bags may be used disposably. For example, one ormore disposable and/or single-use filter bags may be used during thesame medical procedure with the same soaking tub. In some embodiments, afilter bag optionally may be used more than once.

FIG. 29 depicts a cross-section view of an example cell resuspension tubsystem 2900, according to one or more embodiments. According to someembodiments, cell resuspension tub system 2900 may comprise one or moreof the various types of features and/or components described in thisdisclosure (e.g., with respect to FIG. 2 and FIG. 20). As depicted inFIG. 29, the cell resuspension tub system 2900 may comprise a vessel orcontainer with an opening for receiving one or more articles, andfurther may comprise at least one flexible filter 2902 (also referred toin this disclosure as a “filter bag” with respect to some embodiments)for containing and/or for facilitating removal from a soaking tub of oneor more types of articles 2922 (e.g., surgical sponges). In someembodiments, at least a portion of the flexible filter 2902 may extendinto the soaking tub such that at least a portion of the flexible filteris below the level of suspension fluid in the soaking tub (e.g., whenthe tub is filled or partially filled). Accordingly, the contents of thefilter bag may be acted upon by the suspension solution. In someembodiments, the flexible filter 2902 may be removable from a soakingtub of the cell resuspension tub system 2900. Accordingly, the flexiblefilter 2902 may provide a useful means for inserting into and/orremoving articles from a soaking tub, and/or may also be useful fortransporting and/or storing articles. Some examples of flexible filtersare described with respect to FIG. 30 and FIG. 31, and others will bereadily understood in light of the present disclosure.

According to various embodiments, a lid 2920 may be removably secured tothe top of the soaking tub of the cell resuspension tub system 2900, forexample, by screwing and/or clamping the lid on). In some embodiments,the flexible filter 2902 may be secured at a top portion of the filterto the soaking tub by the lid 2920. For example, the opening of a meshbag (e.g., containing surgical sponges) used as a flexible filter may beplaced outside a soaking tub, the rest of the mesh bag (and itscontents) inserted in the soaking tub, and the mesh bag secured byclosing a lid over the opening of the soaking tub. In this way, theitems contained in the mesh bag may be agitated (e.g., for removing andresuspending any cells) and then the mesh bag easily drawn up out of thesoaking tub (e.g., by taking hold of the upper portion of the mesh bagleft outside the soaking tub) once the lid is opened again.

According to some embodiments, at least a portion of the filter bag 2902may be inserted through and/or otherwise pass through the lid 2920. Inone example, the lid 2920 may comprise one or more openings (closable ornot) which a portion of the filter bag (e.g., the top portion includingthe opening of the filter bag and/or the drawstrings) may pass through.In one embodiment, a drawstring and/or other portion of the filter bagdisposed outside of the interior of a soaking tub may be secured byattaching the portion to a hook, clip, or other type of fasteningmechanism and/or, if the portion passes through an opening in a lid, byclosing the opening.

According to some embodiments, the filter bag may be comprised of amaterial that is permeable and/or porous while the filter bag issubmerged in fluid (i.e., fluid is able to pass into and/or out of thefilter bag). In one embodiment, the filter bag is comprised of amaterial that is permeable when submerged but becomes less permeable orimpermeable when removed from fluid, when exposed to air, and/or whensubjected to compression.

FIG. 30 and FIG. 31 depict a perspective views of an example flexiblefilter 3000 for use with a cell resuspension system. As depicted in FIG.30, the flexible filter 3000 may comprise a filter bag 3006 made of apermeable and/or porous material (e.g., a mesh of nylon, plastic, cottonfabric, or other suitably flexible and/or elastic material) comprisingan opening 3002 and a drawstring 3004. As discussed in this disclosure,articles from which cells are to be recovered may be placed in theinterior of the filter bag, placed into a soaking tub, and subjected toagitating action (e.g., by an agitator device). It will be readilyunderstood that although FIG. 30 depicts the flexible filter 3000 in asubstantially fully expanded configuration (e.g., the drawstrings havenot been drawn to compress the filter bag) and the opening 3002 in asubstantially circular configuration, the flexible filter and theopening may be configured in any way deemed desirable and in accordancewith the flexibility of the materials utilized.

According to some embodiments, the drawstring 3004 may comprise one ormore ends by which a user may compress and/or expand the filter bag3006, such as by pulling on the end of the drawstring 3004 to collapseor otherwise compress the filter bag 3006. In some embodiments, thedrawstring may be comprised of nylon, cotton, and/or plastic, and may beelastic. In one embodiment, the drawstring may comprise one or morereleasable and/or slidable locks (e.g., push-button sliding locks) toprevent the drawstring from sliding back into the filter bag (e.g., tomaintain compression after it is drawn to compress the filter bag). Inone example, as depicted in FIG. 30 and FIG. 31, the drawstring 3004 maybe secured to the filter bag 3006 in a configuration (e.g., a helicalconfiguration) such that drawing on the drawstring (from one or bothavailable ends) draws the edges of the filter bag inward, draws theopening 3002 closed, and/or draws the bottom of the filter bag towardthe opening. In this manner, for example, a user of a cell resuspensionsystem (e.g., before and/or after operating an agitator device toresuspend cells from surgical laundry) may compress the flexible filter3000 to squeeze cells and/or suspension solution containing cells fromsurgical articles by (as depicted in FIG. 31). Advantageously, inaccordance with some embodiments, additional cells may be recovered fromarticles by compressing the articles in the filter bag 3006.

Additional Embodiments

According to some embodiments, systems, methods, and apparatus may beprovided for the storage of recovered blood and/or cells for testing,storage, transfusion (e.g., to one or more persons) and/or eventualre-infusion to a patient. In some embodiments, blood cells of a patientrecovered by a cell resuspension system may be concentrated (e.g., usinga cell salvage device) and stored (e.g., in a sterile manner) for lateruse (e.g., for transfusion to a different patient).

According to some embodiments, systems, methods, and apparatus may beprovided for the autotransfusion of recovered blood, such as bloodreclaimed from surgical laundry and resuspended in a fluid in accordancewith various embodiments described in this disclosure. Autotransfusionwill be readily understood by those skilled in the art as a process bywhich a patient's own shed blood can be returned to that patient.Autotransfusion typically uses a system to acquire, process, andre-infuse shed blood volume by means of a suction style of collection.Some of the benefits of autotransfusion include a reduction in thepatient's immune reactivity related to the administration of allogeneicblood (a.k.a. bank blood), an elimination of the potential for an ABOincompatibility, an elimination of the risk of transmission of bloodborne diseases like Hepatitis, HIV/AIDS, Cytomegalovirus Virus (CMV),Crutchfield Jakobs Disease (CJD) among many others known or unknown.Autotransfusion also decreases the demand on the supply of bloodavailable for transfusions. According to some embodiments, a cellresuspension system may comprise and/or may transmit resuspended bloodto one or more autologous cell salvage devices or cell salvage devicesfor processing and/or eventual re-infusion in a patient.

According to some embodiments, a soaking tub, cell resuspension tubsystem, agitator device and/or cell resuspension system may include oneor more devices for counting articles, such as sponges and/or othertypes of surgical laundry, introduced into and/or removed from a soakingtub system. In one embodiment, a cell resuspension system may providefor means to count a number of sponges put into a soaking tub (e.g., atthe beginning of a cell resuspension process) and/or to count a numberof sponges removed from the soaking tub (e.g., after a cell resuspensionprocess is completed). In this way, medical personnel may be certainthat all of the sponges put into a soaking tub are recovered, which maybe useful information if the sponges used in a medical procedure must beaccounted for. If, for example, one or more sponges are missing (e.g.,after a medical procedure), it may be advantageous to be able todetermine whether any sponges are still in the patient (e.g., in orderto eliminate that possibility). Some types of sponges may include RFIDchips or devices that may be read by one or more various types of RFIDreading devices, in a manner known in the art, in order to trackindividual sponges and/or to determine a count of sponges in aparticular location. Accordingly, in some embodiments, an RFID readermay be connected to and/or integrated with a soaking tub (e.g.,installed at the opening at the top of a soaking tub) so that any spongeincluding an RFID chip passing through the opening is identified and/ormay be counted. The RFID reader may therefore be able to detect when asponge is inserted into and/or removed from soaking tub. In someembodiments, the RFID reader may store this information and/or maytransmit the information (e.g., count information) to one or more userinterfaces and/or controller devices.

According to one or more embodiments, a device is provided for use inresuspending blood that is suspended in surgical laundry, wherein thedevice uses a physiologic solution to fill a vessel to extract blood. Insome embodiments, the device comprises a vessel and the device isconfigured to fill the vessel (e.g., via a filling mechanism) with asterile physiologic suspension solution. In one or more embodiments, thedevice may comprise a mechanism for controlling the filling of thevessel with a physiologic suspension solution and/or for controlling theemptying of the vessel. In one embodiment, the vessel is configured sothat bloody surgical laundry may be placed (e.g., by a user) in thevessel to soak in sterile physiologic suspension solution. In oneembodiment, the vessel of the example device is engaged in a mechanismfor agitating the vessel to liberate blood from surgical laundry. In oneembodiment, the device may include a drain line at the bottom of thevessel (e.g., to drain the blood saturated suspension fluid from thevessel).

According to some embodiments, neither agitating a cell resuspensiontub, fluid, and/or surgical articles, nor releasing or resuspendingcells from surgical articles, comprises the use of suction, a vacuum, orother type of negative pressure.

According to some embodiments, providing fluid to a soaking tub or othertype of cell resuspension tub may not involve a pump or like device. Forexample, fluid may be introduced manually (e.g., by a user) into asoaking tub.

Although numerous embodiments are described in this disclosure withrespect to surgical laundry, sponges, and other types of surgicalarticles, it will be readily understood, in light of the presentdisclosure, that various embodiments described in this disclosure may beconfigured for use with any of various types of objects an item ofclothing, paper, and/or a piece of glass) that may have collected orretained cells to be recovered.

In one embodiment, a heater configured to heat physiologic suspensionsolution or other type of fluid used in resuspending cells may beconfigured for heating the fluid directly or indirectly, such as byheating tubing, IV bags, and/or a cell resuspension tub.

According to some embodiments, a cell resuspension tub system maycomprise one or more types of cell concentrators (e.g., ahemoconcentrator, a membrane-based concentrator such as the Hemosep™cell concentrator by Advancis Surgical) for concentrating cellsrecovered from surgical laundry, tissue, and/or other types of articles.In some embodiments, a cell resuspension tub system may be connected(e.g., via outlet tubing outside of a soaking tub) to a cellconcentrator, which may, in some embodiments, be connected to a cellsalvage machine. In some embodiments, the cell concentrator may be actedupon by hydrostatic pressure and/or flow provided by positivedisplacement. Accordingly, in some embodiments, a cell resuspensionsystem may be configured with components for concentrating recoveredcells and an external cell salvage system may not be required.

Interpretation

Numerous embodiments are described in this patent application, and arepresented for illustrative purposes only. The described embodiments arenot, and are not intended to be, limiting in any sense. The presentlydisclosed invention(s) are widely applicable to numerous embodiments, asis readily apparent from the disclosure. One of ordinary skill in theart will recognize that the disclosed invention may be practiced withvarious modifications and alterations, such as structural, logical,software, and/or electrical modifications. Although particular featuresof the disclosed invention(s) may be described with reference to one ormore particular embodiments and/or drawings, it should be understoodthat such features are not limited to usage in the one or moreparticular embodiments or drawings with reference to which they aredescribed, unless expressly specified otherwise.

The present disclosure is neither a literal description of allembodiments nor a listing of features that must be present in allembodiments.

Neither the Title (set forth at the beginning of the first page of thisdisclosure) nor the Abstract (set forth at the end of this disclosure)is to be taken as limiting in any way the scope of the disclosedinvention(s).

Throughout the description and unless otherwise specified, the followingterms may include and/or encompass the example meanings provided below.These terms and illustrative example meanings are provided to clarifythe language selected to describe embodiments both in the specificationand in the appended claims, and accordingly, are not intended to belimiting.

The terms “an embodiment”, “embodiment”, “embodiments”, “theembodiment”, “the embodiments”, “one or more embodiments”, “someembodiments”, “one embodiment” and the like mean “one or more (but notall) disclosed embodiments”, unless expressly specified otherwise.

The terms “the invention” and “the present invention” and the like mean“one or more embodiments of the present invention.”

A reference to “another embodiment” in describing an embodiment does notimply that the referenced embodiment is mutually exclusive with anotherembodiment (e.g., an embodiment described before the referencedembodiment), unless expressly specified otherwise.

The terms “including”, “comprising” and variations thereof mean“including but not limited to”, unless expressly specified otherwise.The terms “a”, “an” and “the” mean “one or more”, unless expresslyspecified otherwise. The term “plurality” means “two or more”, unlessexpressly specified otherwise. The term “herein” means “in the presentdisclosure, including anything which may be incorporated by reference”,unless expressly specified otherwise. The phrase “at least one of”, whensuch phrase modifies a plurality of things (such as an enumerated listof things) means any combination of one or more of those things, unlessexpressly specified otherwise. For example, the phrase at least one of awidget, a car and a wheel means either (i) a widget, (ii) a car, (iii) awheel, (iv) a widget and a car, (v) a widget and a wheel, (vi) a car anda wheel, or (vii) a widget, a car and a wheel. The phrase “based on”does not mean “based only on”, unless expressly specified otherwise. Inother words, the phrase “based on” describes both “based only on” and“based at least on”.

Where a limitation of a first claim would cover one of a feature as wellas more than one of a feature (e.g., a limitation such as “at least onewidget” covers one widget as well as more than one widget), and where ina second claim that depends on the first claim, the second claim uses adefinite article “the” to refer to the limitation (e.g., “the widget”),this does not imply that the first claim covers only one of the feature,and this does not imply that the second claim covers only one of thefeature (e.g., “the widget” can cover both one widget and more than onewidget). Each process (whether called a method, algorithm or otherwise)inherently includes one or more steps, and therefore all references to a“step” or “steps” of a process have an inherent antecedent basis in themere recitation of the term “process” or a like term. Accordingly, anyreference in a claim to a “step” or “steps” of a process has sufficientantecedent basis.

When an ordinal number (such as “first”, “second”, “third” and so on) isused as an adjective before a term, that ordinal number is used (unlessexpressly specified otherwise) merely to indicate a particular feature,such as to distinguish that particular feature from another feature thatis described by the same term or by a similar term. For example, a“first widget” may be so named merely to distinguish it from, e.g., a“second widget”. Thus, the mere usage of the ordinal numbers “first” and“second” before the term “widget” does not indicate any otherrelationship between the two widgets, and likewise does not indicate anyother characteristics of either or both widgets. For example, the mereusage of the ordinal numbers “first” and “second” before the term“widget” (1) does not indicate that either widget comes before or afterany other in order or location; (2) does not indicate that either widgetoccurs or acts before or after any other in time; and (3) does notindicate that either widget ranks above or below any other, as inimportance or quality. In addition, the mere usage of ordinal numbersdoes not define a numerical limit to the features identified with theordinal numbers. For example, the mere usage of the ordinal numbers“first” and “second” before the term “widget” does not indicate thatthere must be no more than two widgets.

As used in this disclosure, a “user” may generally refer to anyindividual and/or entity that operates a user device. Some embodimentsmay be associated with a “user device” or a “network device”. As used inthis disclosure, the terms “user device” and “network device” may beused interchangeably and may generally refer to any device that cancommunicate via a network. Examples of user or network devices include apersonal computer (PC), a workstation, a server, a printer, a scanner, afacsimile machine, a copier, a personal digital assistant (PDA), astorage device (e.g., a disk drive), a hub, a router, a switch, and amodem, a video game console, or a wireless phone. User and networkdevices may comprise one or more communication or network components.

As used in this disclosure, the terms “information” and “data” may beused interchangeably and may refer to any data, text, voice, video,image, message, bit, packet, pulse, tone, waveform, and/or other type orconfiguration of signal and/or information. Information may compriseinformation packets transmitted, for example, in accordance with theInternet Protocol Version 6 (IPv6) standard as defined by “InternetProtocol Version 6 (IPv6) Specification” RFC 1883, published by theInternet Engineering Task Force (IETF), Network Working Group, S.Deering et al. (December 1995). Information may, according to someembodiments, be compressed, encoded, encrypted, and/or otherwisepackaged or manipulated in accordance with any method that is or becomesknown or practicable.

In addition, some embodiments described in this disclosure areassociated with an “indication”. The term “indication” may be used torefer to any indicia and/or other information indicative of orassociated with a subject, item, entity, and/or other object and/oridea. As used in this disclosure, the phrases “information indicativeof” and “indicia” may be used to refer to any information thatrepresents, describes, and/or is otherwise associated with a relatedentity, subject, or object. Indicia of information may include, forexample, a code, a reference, a link, a signal, an identifier, and/orany combination thereof and/or any other informative representationassociated with the information. In some embodiments, indicia ofinformation (or indicative of the information) may be or include theinformation itself and/or any portion or component of the information.In some embodiments, an indication may include a request, asolicitation, a broadcast, and/or any other form of informationgathering and/or dissemination.

“Determining” something may be performed in a variety of manners andtherefore the term “determining” (and like terms) includes calculating,computing, deriving, looking up (e.g., in a table, database or datastructure), ascertaining, recognizing, and the like.

A “processor” means any one or more microprocessors, Central ProcessingUnit (CPU) devices, computing devices, microcontrollers, digital signalprocessors, or like devices. Examples of processors include, withoutlimitation, INTEL's PENTIUM, AMD's ATHLON, or APPLE's A6 processor.

When a single device or article is described in this disclosure, morethan one device or article (whether or not they cooperate) mayalternatively be used in place of the single device or article that isdescribed. Accordingly, the functionality that is described as beingpossessed by a device may alternatively be possessed by more than onedevice or article (whether or not they cooperate). Where more than onedevice or article is described in this disclosure (whether or not theycooperate), a single device or article may alternatively be used inplace of the more than one device or article that is described. Forexample, a plurality of computer-based devices may be substituted with asingle computer-based device. Accordingly, functionality that isdescribed as being possessed by more than one device or article mayalternatively be possessed by a single device or article. Thefunctionality and/or the features of a single device that is describedmay be alternatively embodied by one or more other devices that aredescribed but are not explicitly described as having such functionalityand/or features. Thus, other embodiments need not include the describeddevice itself, but rather can include the one or more other devices thatwould, in those other embodiments, have such functionality/features.

A description of an embodiment with several components or features doesnot imply that any particular one of such components and/or features isrequired. On the contrary, a variety of optional components aredescribed to illustrate the wide variety of possible embodiments of thepresent invention(s). Unless otherwise specified explicitly, nocomponent and/or feature is essential or required.

Further, although process steps, algorithms or the like may be describedor depicted in a sequential order, such processes may be configured towork in one or more different orders. In other words, any sequence ororder of steps that may be explicitly described or depicted does notnecessarily indicate a requirement that the steps be performed in thatorder. The steps of processes described in this disclosure may beperformed in any order practical. Further, some steps may be performedsimultaneously despite being described or implied as occurringnon-simultaneously (e.g., because one step is described after the otherstep). Moreover, the illustration of a process by its depiction in adrawing does not imply that the illustrated process is exclusive ofother variations and modifications, does not imply that the illustratedprocess or any of its steps is necessary to the invention, and does notimply that the illustrated process is preferred.

It will be readily apparent that the various methods and algorithmsdescribed in this disclosure may be implemented by, e.g., appropriately-and/or specially-programmed general purpose computers and/or computingdevices. Typically a processor (e.g., one or more microprocessors) willreceive instructions from a memory or like device, and execute thoseinstructions, thereby performing one or more processes defined by thoseinstructions. Further, programs that implement such methods andalgorithms may be stored and transmitted using a variety of media (e.g.,computer-readable media) in a number of manners. In some embodiments,hard-wired circuitry or custom hardware may be used in place of, or incombination with, software instructions for implementation of theprocesses of various embodiments. Thus, embodiments are not limited toany specific combination of hardware and software.

Accordingly, a description of a process likewise describes at least oneapparatus for performing the process, and likewise describes at leastone computer-readable medium and/or computer-readable memory forperforming the process. The apparatus that performs a described processmay include components and/or devices (e.g., a processor, input andoutput devices) appropriate to perform the process. A computer-readablemedium may store program elements and/or instructions appropriate toperform a described method.

The term “computer-readable medium” refers to any medium thatparticipates in providing data (e.g., instructions or other information)that may be read by a computer, a processor, or a like device. Variousforms of computer-readable media may be involved in carrying data,including sequences of instructions, to a processor. For example,sequences of instruction (i) may be delivered from RAM to a processor,(ii) may be carried over a wireless transmission medium, and/or (iii)may be formatted according to any one or more of various known formats,standards, or protocols (some examples of which are described in thisdisclosure with respect to communication networks).

Computer-readable media may take many forms, including but not limitedto, non-volatile media, volatile media, and transmission media.Non-volatile media may include, for example, optical or magnetic disksand other types of persistent memory. Volatile media may include, forexample, DRAM, which typically constitutes the main memory for acomputing device. Transmission media may include, for example, coaxialcables, copper wire, and fiber optics, including the wires that comprisea system bus coupled to the processor. Transmission media may include orconvey acoustic waves, light waves, and electromagnetic emissions, suchas those generated during RF and IR data communications. Common forms ofcomputer-readable media include, for example, a floppy disk, a flexibledisk, a hard disk, magnetic tape, any other magnetic medium, a CD-ROM,DVD, any other optical medium, a punch card, paper tape, any otherphysical medium with patterns of holes, a RAM, a PROM, an EPROM, aFLASH-EEPROM, a Universal Serial Bus (USB) memory stick or thumb drive,a dongle, any other memory chip or cartridge, a carrier wave, or anyother medium from which a computer can read.

The term “computer-readable memory” may generally refer to a subsetand/or class of non-transitory computer-readable medium that does notinclude intangible or transitory signals, waves, waveforms, carrierwaves, electromagnetic emissions, or the like. Computer-readable memorymay typically include physical, non-transitory media upon which data(e.g., instructions or other information) are stored, such as optical ormagnetic disks and other persistent memory, DRAM, a floppy disk, aflexible disk, hard disk, magnetic tape, any other magnetic medium, aCD-ROM, DVD, any other optical medium, punch cards, paper tape, anyother physical medium with patterns of holes, a RAM, a PROM, an EPROM, aFLASH-EEPROM, USB devices, any other memory chip or cartridge, and thelike.

Where databases are described, it will be understood by one of ordinaryskill in the art that (i) alternative database structures to thosedescribed may be readily employed, and (ii) other memory structuresbesides databases may be readily employed. Any illustrations ordescriptions of any sample databases presented in this disclosure areillustrative arrangements for stored representations of information. Anynumber of other arrangements may be employed besides those suggested by,e.g., tables illustrated in drawings or elsewhere. Similarly, anyillustrated entries of the databases represent exemplary informationonly; one of ordinary skill in the art will understand that the numberand content of the entries may be different from those described in thisdisclosure. Further, despite any depiction of the databases as tables,other formats (including relational databases, object-based models,hierarchical electronic file structures, and/or distributed databases)could be used to store and/or manipulate the described data. Likewise,object methods or behaviors of a database may be used to implement oneor more of various processes, such as those described in thisdisclosure. In addition, the databases may, in a known manner, be storedlocally and/or remotely from a device that accesses data in such adatabase. Furthermore, while unified databases may be contemplated, itis also possible that the databases may be distributed and/or duplicatedamongst a variety of devices.

The present disclosure provides, to one of ordinary skill in the art, anenabling description of several embodiments and/or inventions. Some ofthese embodiments and/or inventions may not be claimed in the presentapplication, but may nevertheless be claimed in one or more continuingapplications that claim the benefit of priority of the presentapplication. Applicants intend to file additional applications to pursuepatents for subject matter that has been disclosed and enabled but notclaimed in the present application.

What is claimed is:
 1. A cell recovery and storage system comprising: anagitator device comprising a first connector; a sterile, single-usesoaking tub comprising a second connector connected to a bottom portionof the soaking tub, the second connector having a passageway configuredfor receiving suspension solution through the second connector, and thesecond connector being configured for rotatably coupling with the firstconnector of the agitator device; a filter bag configured to be at leastpartially disposed in an interior of the soaking tub; a fluid intakesystem comprising inlet tubing connected to the soaking tub via thepassageway of the second connector; a fluid output system comprisingoutlet tubing connected to the soaking tub via the passageway of thesecond connector; and at least one cell collection device connected tothe fluid output system for collecting cells resuspended in suspensionsolution.
 2. The cell recovery and storage system of claim 1, wherein adrawstring of the filter bag is slidably attached to the filter bag in asubstantially helical configuration.
 3. The cell recovery and storagesystem of claim 1, further comprising a lid for closing an opening ofthe soaking tub.
 4. The cell recovery and storage system of claim 1, thesoaking tub further comprising at least one fin.
 5. The cell recoveryand storage system of claim 1, wherein the fluid intake system comprisesat least one flow control valve.
 6. The cell recovery and storage systemof claim 1, wherein the fluid output system comprises at least one flowcontrol valve.
 7. The cell recovery and storage system of claim 1,further comprising: an RFID sensor connected to at least one of thesoaking tub and the agitator device.
 8. The cell recovery and storagesystem of claim 7, wherein the RFID sensor is in communication with acontroller device configured to receive information from the RFIDsensor.
 9. The cell recovery and storage system of claim 8, wherein theinformation comprises a count of articles detected by the RFID sensor.10. The cell recovery and storage system of claim 1, further comprisingat least one of: an IV bag spike, a flow sensor, and a temperaturesensor.
 11. The cell recovery and storage system of claim 1, the fluidoutput system comprising at least one of: a hematocrit sensor configuredto measure a hematocrit value for the suspension solution removed fromthe soaking tub, a flow sensor configured to measure a volume of thesuspension solution removed from the soaking tub, and an air detectorconfigured to detect air in the suspension solution removed from thesoaking tub.
 12. The cell recovery and storage system of claim 1,wherein the soaking tub comprises at least one of: a fill sensor, afilter, and a first wall and second wall inside the first wall, thesecond wall including at least one opening for allowing fluid to passthrough the second wall from the interior of the soaking tub.
 13. Thecell recovery and storage system of claim 1, wherein the agitator devicecomprises at least one of: a motor, a power supply, and a drive shaft.14. The cell recovery and storage system of claim 1, further comprising:a cabinet configured for housing the agitator device and the soakingtub, the cabinet including an opening for receiving the soaking tub intothe cabinet, and a lid for controlling access to at least one of: theagitator device and the soaking tub.
 15. The cell recovery and storagesystem of claim 1, wherein the second connector comprises a channelconfigured to secure at least one of: the inlet tubing, the outlettubing, and a y-type tubing connection connected to the inlet tubing andto the outlet tubing.
 16. The cell recovery and storage system of claim1, further comprising: a heater configured to heat the suspensionsolution.
 17. The cell recovery and storage system of claim 1, furthercomprising: a controller device configured to: control operation of thefluid intake system to transmit suspension solution into the soakingtub, control operation of the agitator device, and control operation ofthe fluid output system to remove from the soaking tub the suspensionsolution.
 18. The cell recovery and storage system of claim 17, thecontroller device being further configured to: receive a signal from afill sensor configured to detect fluid in the soaking tub, the signalindicating detection of the suspension solution; and terminate operationof the fluid intake system in response to receiving the signal.
 19. Thecell recovery and storage system of claim 17, the controller devicebeing further configured to: receive a signal from at least one of aflow sensor and an air detector; and terminate removal of the suspensionsolution from the soaking tub via the fluid output system in response toreceiving the signal.
 20. The cell recovery and storage system of claim17, further comprising a user control panel for controlling, via thecontroller device, one or more of: operation of the fluid intake system,operation of the agitator device, and operation of the fluid outputsystem.